Peraturan berkaitan pengurusan sisa pepejal di Utara Semenanjung Malaysia - Mohd Anuar, Haslinda; Mohd Ali @ Ramli, Azlin Namili; Abdul Wahab, Harlida; Yaacob, Nurli; Mustafa, Abdul Rahman; Mohd Saad, Abdul Rahim (Sekolah Pengurusan, Universiti Utara Malaysia, 2003)