Universitas Indonesia, 1985
UI - Skripsi (Membership)
Sonny Widyawan, author
Universitas Indonesia, 2003
UI - Tesis (Membership)
R. Diah Irmaningrum Susanti, author
Setara press, 2017
Buku Teks
Harsono Adisumarto, author
Jakarta : Akademika Pressindo, 1990,
Buku Referensi
Hutagalung, Sophar Maru, author
Akademika Pressindo, 1993
Buku Teks