APA Style

Siahaan, Edward Tigor. (2012). Batak inspigraph (1st ed). Jakarta, Indonesia: Harapan Prima Printing.

Chicago Style

Siahaan, Edward Tigor. Batak inspigraph. 1st ed Jakarta, Indonesia: Harapan Prima Printing, 2012. Text.

MLA Style

Siahaan, Edward Tigor. Batak inspigraph. 1st ed Jakarta, Indonesia: Harapan Prima Printing, 2012. Text.

Turabian Style

Siahaan, Edward Tigor. Batak inspigraph. 1st ed Jakarta, Indonesia: Harapan Prima Printing, 2012. Print.