TY - JOUR T1 - An Elementary Method in Number Theory A1 - Quang, Nguyen Thanh A1 - Tuan, Phan Duc Y1 - 2019 PY - 2019 DA - 2020/01/03 N1 - doi: 10.12691/education-7-12-14 DO - 10.12691/education-7-12-14 T2 - American Journal of Educational Research JF - American Journal of Educational Research JO - American Journal of Educational Research SP - 989 EP - 993 VL - 7 IS - 12 PB - Science and Education Publishing SN - 2327-6150 M3 - doi: 10.12691/education-7-12-14 UR - http://pubs.sciepub.com/education/7/12/14 Y2 - 2020/01/03 ER -