Syafrina, N. (2013). Teka-Teki Umar bin Khattab. Tiga Ananda.
Chicago Style (17th ed.) CitationSyafrina, Nelfi. Teka-Teki Umar Bin Khattab. Tiga Ananda, 2013.
MLA (8th ed.) CitationSyafrina, Nelfi. Teka-Teki Umar Bin Khattab. Tiga Ananda, 2013.
Warning: These citations may not always be 100% accurate.