HARAHAP, S. S. (1991). Auditing Kontemporer Sofyan Safri Harahap. Erlangga.
Chicago Style (17th ed.) CitationHARAHAP, Sofyan Safri. Auditing Kontemporer Sofyan Safri Harahap. Erlangga, 1991.
MLA引文HARAHAP, Sofyan Safri. Auditing Kontemporer Sofyan Safri Harahap. Erlangga, 1991.
警告:這些引文格式不一定是100%准確.