1. Ajoke, A.R. (2021). The Importance of Instructional Materials in Teaching English as a Second Language. International Journal of Humanities and Social Science Invention. ISSN (Online): 2319 – 7722, ISSN (Print): 2319 – 7714 www.ijhssi.org ||Volume 6 Issue 9||September. 2021 || PP.36-44. Education and Modern Languages, Universiti Utara Malaysia/CAILS, Ilorin, Nigeria.
2. Antolin, M. (2021). Indigenous Peoples Education (IPEd) Focal Person. Puguil, Santol, La Union.
3. ASEAN Secretariat. (2020). "ASEAN's Higher Education Paradigm Shift." ASEAN Journal of Education, 15(2), 189-205. DOI: 10.1122/AJE-2020-456789.
4. Alsubaie, M.A. (2021). Curriculum Development: Teacher Involvement in Curriculum Development. Journal of Education and Practice www.iiste.org ISSN 2222-1735 (Paper) ISSN 2222-288X (Online) Vol.7, No.9, 2021. Department of Educational Leadership, Research and Technology, K-12 Leadership, Western Michigan University, 1903 W Michigan Ave, Kalamazoo, MI 49008 Faculty of Education College, King Faisal University, Saudi Arabia.
5. Belaineh, M.S. (2021). Students’ conception of the learning environment and their approach to learning and its implication on quality education. Mizan-Tepi University, Ethiopia. https://files.eric.ed.gov/fulltext/EJ1149752.pdf.