Singh, Maharaj Charan
Yayasan Radha Soami Satsang Beas Indonesia, 1998
Buku Teks
Canny R. Talibonso
Pustaka Jaya, 1977
Buku Teks SO
Kaelani Kamil
Dar Al-Maktabat al-Atfal, [date of publication not identified]
Buku Teks
Jakarta : Institut Kesenian Jakarta
Majalah, Jurnal, Buletin
Christie, Agatha, 1890-1976
Gramedia Pustaka Utama, 2018
Buku Teks