Roslan Muhammad and Ishak Saat, KEGANASAN KOMUNIS DI DAERAH HULU LANGAT, SELANGOR. Penerbit UTHM, 2017. Accessed: Apr. 09, 2026. [Online]. Available: https://penerbit.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/180