Harahap. (1989). Syurga yang kau janjikan (Cet. 1.). Cresent News Agencies.
Chicago Style (17th ed.) CitationHarahap. Syurga Yang Kau Janjikan. Cet. 1. Kuala Lumpur: Cresent News Agencies, 1989.
MLA (8th ed.) CitationHarahap. Syurga Yang Kau Janjikan. Cet. 1. Cresent News Agencies, 1989.
Warning: These citations may not always be 100% accurate.