TY - JOUR T1 - Designing Humorous Materials in Teaching Vietnamese Language in Primary Schools in the Perspective of Constructivism Theory A1 - Anh, Le Thi Lan Y1 - 2019 PY - 2019 DA - 2019/07/02 N1 - doi: 10.12691/education-7-6-6 DO - 10.12691/education-7-6-6 T2 - American Journal of Educational Research JF - American Journal of Educational Research JO - American Journal of Educational Research SP - 407 EP - 417 VL - 7 IS - 6 PB - Science and Education Publishing SN - 2327-6150 M3 - doi: 10.12691/education-7-6-6 UR - http://pubs.sciepub.com/education/7/6/6 Y2 - 2019/07/02 ER -