SEOW TA WEE. SUMBANGAN KOMUNITI PENGUTIP SAMPAH DALAM PENGURUSAN SISA PEPEJAL DI MALAYSIA. [s.l.] : Penerbit UTHM,2012. Disponível em: https://publisher.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/75.. Acesso em: 19 jul. 2024.