1 Dowty, D., "Word Meaning and Montague Grammar" Kluwer Academic Publishers 1979
2 Collins, L., "The Roles of L1 Influence and Lexical Aspect in Acquisition of Temporal Morphology" 52 : 43-94, 2002
3 Smith, C., "The Parameter of Aspect" Kluwer Publishers 43 : 1997
4 Connell, B., "The Lower Cross Languages: a Pro-legomena to the Classification of the Cross River Languages" 420 : 13-46, 1994
5 Willie, W., "The Linguistics Landscape in a Globalized Africa" 18 : 47-62, 2014
6 Rohde, A., "The L2 Acquisition of Tense-aspect Morphology" Benjamins 199-220, 2002
7 Housen, A., "The L2 Acquisition of Tense-aspect Morphology" Benjamins 155-197, 2002
8 Andersen, R., "The Insider’s Advantage" Lingua Seconda/Lingua Straniera 1-26, 1994
9 Dowty, D., "The Effects of Aspectual Class on the Temporal Structure of Discourse: Semantics or Pragmatics?" 9 : 37-61, 1986
10 Robison, R., "The Aspect Hypothesis Revisited: A Cross-sectional Study of Tense and Aspect Marking in Interlanguage" 16 : 344-370, 1995
1 Dowty, D., "Word Meaning and Montague Grammar" Kluwer Academic Publishers 1979
2 Collins, L., "The Roles of L1 Influence and Lexical Aspect in Acquisition of Temporal Morphology" 52 : 43-94, 2002
3 Smith, C., "The Parameter of Aspect" Kluwer Publishers 43 : 1997
4 Connell, B., "The Lower Cross Languages: a Pro-legomena to the Classification of the Cross River Languages" 420 : 13-46, 1994
5 Willie, W., "The Linguistics Landscape in a Globalized Africa" 18 : 47-62, 2014
6 Rohde, A., "The L2 Acquisition of Tense-aspect Morphology" Benjamins 199-220, 2002
7 Housen, A., "The L2 Acquisition of Tense-aspect Morphology" Benjamins 155-197, 2002
8 Andersen, R., "The Insider’s Advantage" Lingua Seconda/Lingua Straniera 1-26, 1994
9 Dowty, D., "The Effects of Aspectual Class on the Temporal Structure of Discourse: Semantics or Pragmatics?" 9 : 37-61, 1986
10 Robison, R., "The Aspect Hypothesis Revisited: A Cross-sectional Study of Tense and Aspect Marking in Interlanguage" 16 : 344-370, 1995
11 Salaberry, R., "The Acquisition of English Past Tense in an Instructional Setting" 28 : 135-152, 2000
12 Bardovi-Harlig, K., "Tense and Aspect in Second Language Acquisition:Form, meaning, and Use" Blackwell Publishers Ltd 2000
13 Comrie, B., "Tense" Cambridge University Press 1986
14 Mourelatos, A., "Syntax and Semantics: Tense and Aspect" Academic Press 191-212, 1981
15 Willie, W., "Second Language Acquisition of Tense and Aspect" Lambert Academic Publishing 2012
16 Andersen, R., "Second Language Acquisition and Linguistics Theories" 305-524, 1991
17 Willie, W., "Question Formation Rules in Ibibio" 16 & 17 : 29-45, 2011
18 Eyoh, L., "Nigerian Oral Poetry as a Source of Democratic Principles:A Study of Selected Ibibio Proverbs" 5 : 138-151, 2008
19 Vendler, Z., "Linguistics and Philosophy" Cornell University Press 97-121, 1967
20 Urua, E., "Languages or Dialects? Language Situation in Akwa Ibom State" 4 : 50-65, 1996
21 Andersen, R., "Interpreting Data: Second Language Acquisition of Verbal Aspect" University of California 1986
22 Lee, E-J., "Interlanguage Development by Two Korean Speakers of English with a Focus on Temporality" 51 : 591-633, 2001
23 Eyoh, L., "Ibom Cultural Offerings:Arts Crafts and Performances" University of Cape Coast Press 43-53, 2013
24 Essien, O., "Current Approaches to African Linguistics, 2" Foris Publications 1983
25 Comrie, B., "Aspect" Cambridge University Press 1976
26 Upor, R., "Acquisition of Tense-aspect Morphology Among Tanzanian EFL Learners" University of Georgia 2009
27 Ayoun, D., "Acquisition of English Tense-aspect Morphology by Advanced French Instructed Learners" 53 : 555-595, 2008
28 Smith, C., "A Theory of AspectuaCchoice" 59 : 479-501, 1983