SPAFA Regional Centre Office, 1986
Buku Teks SO
Abdul Gafur
Secretariate of the Minister of Youth Affairs, Ministry of Education and Culture, 1978
Buku Teks
Sherman, Stuart P.
Charles Scribner's Sons, 1923
Buku Teks
Nia Nur Kurniawati
Fakultas Teknik Universitas Indonesia, 2010
UI - Skripsi Open
Lowe, Nick
Kyle Cathie, 2005
Buku Teks