Artikel Jurnal
Mohammad Hatta, 1902-1980, author
Inti Idayu Press , 1985
Buku Teks
Yerry Wirawan, author
2000
UI - Skripsi (Membership)
Mohammad Sadli, 1922-2008, author
Muhammadiyah University Press, 2001
Buku Teks
tim penyunting, Ahmad Watik Pratiknya [and others]
RajaGrafindo Persada, 1999
Buku Teks