Land use planning statutes for Langkawi Geopark conservation and development - Halimaton Saadiah Hashim; Rahimah Abdul Aziz; Chan, K.L. Geraldine; Tanot Unjah; Pertubuhan Perancang Malaysia; Malaysia. Kementerian Perumahan dan Kerajaan Tempatan (Petaling Jaya : Malaysia Institute of Planners, 2011)
PTSL : Koleksi Dokumen