Nik Hassan, Nik Mawar Hanifah, Othman Talib, and Hairul Faiezi Lokman. 2022. “Class Map: Improving Students’ Skills of Organic Synthesis in Learning Organic Chemistry for Pre-University Students”. Malaysian Journal of Social Sciences and Humanities (MJSSH) 7 (1), 270 -84. https://doi.org/10.47405/mjssh.v7i1.1231.