Janus Isaac Nolasco
ISEAS/BUFS, 2018
Artikel Jurnal
Samaha, Joel
West Publishing, 1988
Buku Teks
Inciardi, James A.
Harcourt Brace Jovanovich, 1990
Buku Teks
Silbermaan, Charles E.
Random House, 1978
Buku Teks
Ward, Ralph D.
John Wiley & Sons, 1997
Buku Teks