APA Style

-, ., Astianti, F, W, M. (2019). Journal Of The Indonesian Mathematical Society Vol. 25 No. 2 July 2019 (-). Bandung: Indonesian Mathematical Society (IndoMS).

MLA Style

-, ., Astianti, Fita, Widya, Mei. "Journal Of The Indonesian Mathematical Society Vol. 25 No. 2 July 2019". - Bandung: Indonesian Mathematical Society (IndoMS), 2019. Text.