Harefa, A. (1999). Membangkitkan Roh Profesionalisme. PT. Sun.
Chicago Style (17th ed.) CitationHarefa, Andrias. Membangkitkan Roh Profesionalisme. PT. Sun, 1999.
MLA (8th ed.) CitationHarefa, Andrias. Membangkitkan Roh Profesionalisme. PT. Sun, 1999.
Warning: These citations may not always be 100% accurate.