Grant, W.D.
Environmental microbiology : tertiary level biology
Blackie, 1981
 Buku Teks
Directory of scientific institutions in Indonesia
Madjelis Ilmu Pengetahuan Indonesia
Madjelis Ilmu Pengetahuan Indonesia, 1959
 Buku Referensi
Report of the second nettlap resources development workshop for eduction and training at tertiary level in the managemnet of toxic chemicals and hazardous wastes
edited by John E. Hay, Wimala Ponniah and Mahesh Pradhan
United Nations Environment Programme , 1995
 Buku Teks
Resources volume for tertiary level education and training in the management of toxic chemicals and hazardous wastes
edited by John E. Hay
United Nations Environment Programme, 1995
 Buku Teks
Mohd. Hafsah
Directory of resource persons and institutions on ethnobotany
Perpustakaan Negara Malaysia, 1997
 Buku Referensi