Bestian, B. ., and S. M. M. . Rashid. “Remedial Education Teachers’ Competencies for Differentiated Pedagogy: Systematic Literature Review”. International Journal of Learning, Teaching and Educational Research, vol. 23, no. 1, Jan. 2024, pp. 427-44, http://www.ijlter.myres.net/index.php/ijlter/article/view/1850.