Melinda, I. 2018. Pengaruh Reward dan Punishment Terhadap Motivasi Belajar Siswa Kelas IV A SDN Merak I pada Mata Pelajaran IPS. International Journal of Elementary Education. 2, 2 (Jun. 2018), 81–86. DOI:https://doi.org/10.23887/ijee.v2i2.14408.