Ihsan Mauliardi
Perhimpunan HBT Kota Padang : sebuah tinjauan budaya = The HBT Association of Padang City : a cultural overview
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2021
 UI - Tugas Akhir
Routh , Thomas A
The Volunteer and Community Agencies
Charles C. Thomas , 1972
 Buku Teks SO
Murdock, George Peter
Social structure
Macmillan, 1960
 Buku Teks SO
Merton, Robert K.
Social theory and social structure
Free Press, 1957
 Buku Teks
Merton, Robert K.
Social theory and social structure
Free Press, 1968
 Buku Teks SO