Harahap, A. E. (1984). Ilmu memegang buku. Effendiharahap Publishing Coy.
Chicago Style (17th ed.) CitationHarahap, A. Effendi. Ilmu Memegang Buku. Effendiharahap Publishing Coy, 1984.
MLA (8th ed.) CitationHarahap, A. Effendi. Ilmu Memegang Buku. Effendiharahap Publishing Coy, 1984.
Warning: These citations may not always be 100% accurate.