SHARIFAH MERYAM SHAREH MUSA; HARYATI SHAFII; SEOW TA WEE. ISU-ISU ALAM SEKITAR DAN KELESTARIAN. [s.l.] : Penerbit UTHM,2012. Disponível em: https://publisher.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/90.. Acesso em: 6 may. 2024.