Universitas Indonesia, 1976
Buku Referensi
Universitas Indonesia, [Date of publication not identified]
Buku Referensi
Dore, Ronald, author
UCLA Press, 1976
Buku Teks
Budi Triyono, author
PAPIPTEK-LIPI , 1994
Buku Teks
Bagian Penelitian IKIP Semarang, 1981
Buku Referensi