Sharifah Meryam Shareh Musa, Haryati Shafii and Seow Ta Wee (2012) ISU-ISU ALAM SEKITAR DAN KELESTARIAN. Penerbit UTHM. Available at: https://penerbit.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/90 (Accessed: 18 July 2024).