Leong, Teh Guan, Raja Lailatul Zuraida Raja Maamor Shah, and Nor’ashiqin Mohd Idrus. “Analisis Keperluan Bagi Pembangunan Modul Untuk Pengekalan Pengetahuan Konseptual Dan Prosedural Matematik Tingkatan 1: Need Analysis for Form 1 Mathematics Module Development for Retention of Conceptual and Procedural Knowledge”. Journal of Science and Mathematics Letters 8, no. 2 (November 16, 2020): 86–99. Accessed May 4, 2024. https://ejournal.upsi.edu.my/index.php/JSML/article/view/3686.