Widada, Wahyu, Dewi Herawaty, Abdurrobbil Anggoro, and Khathibul Nugroho. 2019. “THE TRANS LEVEL CHARACTERISTICS ABOUT INFINITE SERIES”. Jurnal Magister Pendidikan Matematika (JUMADIKA) 1 (1), 19-24. https://doi.org/10.30598/jumadikavol1iss1year2019page19-24.