Ridwan, N. K. (2017). Ensiklopedi Khittah Nahdlatul Ulama. Ar Ruzz Media.
Chicago Style (17th ed.) CitationRidwan, Nur Khalik. Ensiklopedi Khittah Nahdlatul Ulama. Ar Ruzz Media, 2017.
MLA (8th ed.) CitationRidwan, Nur Khalik. Ensiklopedi Khittah Nahdlatul Ulama. Ar Ruzz Media, 2017.
Warning: These citations may not always be 100% accurate.