1. Al-Busaidi, S. (2017). Predicting academic achievement. The Asian EFL Journal, 101(5), 4–29.
2. Brinton, D. M., Snow, M. A., & Wesche, M. B. (1989). Content-based second language instruction. Newbury House.
3. Cummins, J. (1984). Bilingual and special education: Issues in assessment and pedagogy. Multilingual Matters Ltd.
4. Cummins, J. (1992). Language proficiency, bilingualism, and academic achievement. In P. Richard-Amato & M. Snow (Eds.), The multicultural classroom: Readings for content-area teachers. Longman.
5. Cummins, J. (1980). The entry and exit fallacy in bilingual education. NABE Journal, 4, 25–60.