“…Topics about performance of obligation was written by Asminar, 2017;Gunawan, 2017;Hisamuddin, 2017;Rahmat et al, 2017;Restuningtyas et al, 2017;Kasri, 2017;Nurhasanah, 2018;Ma'fiyah and Awaludin, 2018;Fathony, 2018;Azizah, 2018;Afandi, 2019;Sartika, 2008;Hadi and Anna, 2011;Disrinama, 2016;Dwitama and Tika, 2016;Ghazalia et al, 2016;Khaeril, 2013;Sani and Saad, 2016a;Sani and Saad, 2016b;Sobana et al, 2016;Syatir et al, 2013;Syawaluddin, 2016;Wahab and Abdul, 2013;Djaghballou et al, 2018;Al-Malkawi, 2018.…”