Tuan Direktur
 Tuan Direktur (literally Mr Director) is a 1939 novel by the Indonesian Muslim cleric and writer Haji Abdul Malik Karim Amrullah (Hamka). Originally published as a serial in Hamka's newspaper Pedoman Masjarakat it follows a man from Banjarmasin who goes to Surabaya becomes rich but ultimately is driven to insanity. The novel has been seen as a critique of materialism arrogance and superstition.