APA Style

-, ., Ningrum, M, E. (2021). Journal Of The Indonesian Mathematical Society Volume 27 Number 1 March 2021 (-). Bandung: The Indonesian Mathematical Society.

MLA Style

-, ., Ningrum, Mia, Erlinda. "Journal Of The Indonesian Mathematical Society Volume 27 Number 1 March 2021". - Bandung: The Indonesian Mathematical Society, 2021. Text.