Phoong Seuk Wai, Phoong Seuk Yen. Komuniti Bebas Dadah Strategi Pengurangan Risiko Di Kawasan Berisiko Tinggi Di Malaysia. Penerbit UTHM; 2026. Accessed April 9, 2026. https://penerbit.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/580