1. Effect of explicit instruction on implicit and explicit second language knowledge: An empirical study on English article acquisition. Unpublished doctoral dissertation,;Akakura,2009
2. Omani English teachers’ and students’ perceptions of the role of grammar instruction in EFL teaching and learning. Unpublished master's thesis,;Al-Kalbani,2004
3. Turkish English teachers’ beliefs about grammar teaching and their grammar teaching practices. Unpublished master's thesis,;Altunbaşak,2010
4. The effects of implicit and explicit instruction on simple and complex grammatical structures for adult English language learners. Unpublished doctoral dissertation,;Andrews,2007
5. An analysis of the grammatical mistakes made by advanced EFL learners;Başöz;E-Journal of New World Sciences Academy: Humanities,2011