Weinberg, Steve
The reporter's handbook : an investigator's guide to documents and techniques
ST. Martin's Press, 1995
 Buku Referensi
Maslansky, Steven P.
Health and safety at hazardous waste sites : an investigator's and remediator's guide to hazwoper
Van Nostrand Reinhold, 1997
 Buku Referensi
Argenti, John
Management techniques : a practical guide
Allen & Unwin, 1975
 Buku Teks
Wartawan Asia: penuntun mengenai tehnik membuat berita = The Asian reporter, a manual on reporting techniques
penyunting, Generoso J. Gil, Jr.
Yayasan Obor Indonesia, 1987
 Buku Teks
Maslansky, Steven P.
Health and safety at hazardous waste sites: an investigator's and remediator's guide to hazwoper/Steven P. Maslansky, Carol J. Maslansky
New York Van Nostrand Reinhold 1997,
 Buku Referensi