Setyaningsih, Lely. “ELAKSANAAN ESSON TUDY OR EARNING OMMUNITY I GMP ATEMATIKA MP OTA ALANG AHUN 2017”. Pi: Mathematics Education Journal 1, no. 2 (April 30, 2018): 47–56. ccessed July 22, 2024. http://ejournal.unikama.ac.id/index.php/pmej/article/view/2325.