edited by Mildred F. Schmertz
McGraw-Hill, 1972
Buku Referensi
Yudha Kartika
Fakultas Teknik Universitas Indonesia, 2013
UI - Tesis (Membership)
Ojeda, Oscar Riera
Rockport Publishers, 1997
Buku Referensi
Sinaga, Alfred Utomo
2019
UI - Skripsi (Membership)
Dober, Richard P.
McGraw-Hill, 1996
Buku Referensi