Muhammad Ridhwan Indra, author
Haji Masagung, 1989
Buku Teks
Muhammad Ridhwan Indra, author
Haji Masagung, 1989
Buku Teks
Muhammad Ridhwan Indra, author
Haji Masagung, 1990
Buku Teks
Universitas Indonesia, 1983
UI - Skripsi (Membership)
Moh. Koesnoe, author
Ubhara Press, 1998
Buku Referensi