Norkhaidi, Saiyidatina Balkhis, Hanifah Mahat, Mohmadisa Hashim, Nasir Nayan, and Yazid Saleh. 2017. “Elemen Pengetahuan Literasi Karbon Dalam Kalangan Pelajar Sekolah Menengah: Pendekatan Analisis Pengesahan Faktor (CFA): Carbon Literacy Knowledge Element Among Secondary School Student: Confirmatory Factor Analysis Approach (CFA)”. GEOGRAFI 5 (1):1-11. https://ojs.upsi.edu.my/index.php/GEOG/article/view/2022.