Cita APA (7th ed.)

UMARI, B. (1994). Sistimatika tasawwuf. Ramadhani.

Cita Chicago (17th ed.)

UMARI, Barmawi. Sistimatika Tasawwuf. Solo: Ramadhani, 1994.

Cita MLA (9th ed.)

UMARI, Barmawi. Sistimatika Tasawwuf. Ramadhani, 1994.