APA Style

Simorangkir, O.P. (1992). Etika Bisnis (-). Jakarta: Personal Christianity.

Chicago Style

Simorangkir, O.P. Etika Bisnis. - Jakarta: Personal Christianity, 1992. Text Book.

MLA Style

Simorangkir, O.P. Etika Bisnis. - Jakarta: Personal Christianity, 1992. Text Book.

Turabian Style

Simorangkir, O.P. Etika Bisnis. - Jakarta: Personal Christianity, 1992. Text Book.