PHOONG SEUK WAI; PHOONG SEUK YEN. Isu, Cabaran dan Strategi dalam Pencegahan dan Pemuliharaan Dadah di Malaysia. [s.l.] : Penerbit UTHM,2026. Disponível em: https://monograph.uthm.edu.my/index.php/penerbituthm/catalog/book/586. Acesso em: 27 aug. 2026.