Abdul Khair, author
Polytechnic of health of banjarmasin, environmental health department, 2015
Artikel Jurnal
Argo Baskoro, author
2012
UI - Skripsi (Open)
Tri Pratiwi, author
Fakultas Matematika dan Ilmu Pengetahuan Alam. Universitas Indonesia, 1988
UI - Skripsi (Membership)
Halvorson, George C., author
Jossey-Bass, 2003
Buku Teks
New York Routledge 1996,
Buku Teks