Hutagalung, I. (2007). Pengembangan Kepribadian. Indeks.
Chicago Style (17th ed.) CitationHutagalung, Inge. Pengembangan Kepribadian. Indeks, 2007.
MLA (8th ed.) CitationHutagalung, Inge. Pengembangan Kepribadian. Indeks, 2007.
Warning: These citations may not always be 100% accurate.