setiyawan, mohamad, 		sumardi, sumardi, AND 		Swatika, Kayan.
" The Emergence of Shia, Khawarij and Sunni Groups in Islam at the Time the Caliphate of Sayyidina Ali bin Abi Talib of the year 35-41 H / 656-661 AD in the Arabian Peninsula." <em>JURNAL HISTORICA</em> [Online], Volume 4 Number 1 (3 June 2020)