Paul L. Magill, Francis R. Holden, Charles Ackley, editor; Frederick G. Sawyer, editorial consultant
McGraw-Hill, 1956
Buku Referensi
Artikel Jurnal
Lang, V. Paul, author
D.B. Taraporevala Sons, 1964
Buku Teks
Lulu Djanatha, author
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2015
UI - Skripsi (Membership)
Grace Oktavina, author
Fakultas Teknik Universitas Indonesia, 2018
UI - Skripsi (Membership)