Email this article 
Refbacks
- There are currently no refbacks.
Copyright (c) 2019 Luis Fernandes, Yonathan Winardi, Jacob Stevy Seleky, Oce Datu Appulembang
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Department of Mathematics Education | Universitas Pelita Harapan | Lippo Karawaci, Tangerang, Indonesia, 15811 | Tel +62 21 5466057 | Fax +62 21 5461055