A two day course on environmental impact assessment/ by Universiti Malaya. Institut Pengajian Tinggi

Kertaskerja Seminar Biografi Malaysia / by Seminar Biografi Malaysia (1986 : Kuala Lumpur), Universiti Malaya. Institut Pengajian Tinggi

Land reclamation for urban development / by Regional Seminar on Land Reclamation for Urban Land Development (1992 : Kuala Lumpur), Universiti Malaya. Institut Pengajian Tinggi

Bioassay of natural products with special emphasis on anticancer agents : programme and abstracts / by National Seminar and Unesco Regional Workshop on Bioassay of Natural Products With Special Emphasis on Anticancer Agents (8th : 1991 : Kuala Lumpur), Universiti Malaya. Institut Pengajian Tinggi, UNESCO Regional Network of Natural Product Chemistry

Projek pembentukan kriteria dan standard kualiti air - fasa IV (pengelasan sungai) = development of water quality criteria and standards - phase IV (river classification) : draft f... by Universiti Malaya. Institut Pengajian Tinggi, Universiti Kebangsaan Malaysia. Biro Penyelidikan dan Perundingan, Universiti Sains Malaysia. Pusat Inovasi dan Perundingan, Universiti Pertanian Malaysia. Institut Perundingan, Universiti Teknologi Malaysia. Unit Penyelidikan dan Perundingan, Malaysia. Kementerian Sains, Teknologi dan Alam Sekitar. Jabatan Alam Sekitar