al_Qahthani, S. b. S. b. W. (2001). Sembilan pilar keberhasilan da\'i di medan dakwah. Pustaka Arafah.
Chicago Style (17th ed.) Citational_Qahthani, Said bin Salim bin Wahf. Sembilan Pilar Keberhasilan Da\'i Di Medan Dakwah. Pustaka Arafah, 2001.
MLA (8th ed.) Citational_Qahthani, Said bin Salim bin Wahf. Sembilan Pilar Keberhasilan Da\'i Di Medan Dakwah. Pustaka Arafah, 2001.
Warning: These citations may not always be 100% accurate.