Sukmono, R. J. (2008). Psikologi zikir. Srigunting.
Chicago Style (17th ed.) CitationSukmono, Rizki Joko. Psikologi Zikir. Srigunting, 2008.
MLA (8th ed.) CitationSukmono, Rizki Joko. Psikologi Zikir. Srigunting, 2008.
Warning: These citations may not always be 100% accurate.