Ispandi Manurung, K. I. (2021) “Pengaruh Model Pembelajaran Learning By Doing Terhadap Kemampuan Penalaran Siswa Di SMKS-PP Putra Jaya Jabal Rahmah Stabat”, Journal Economy and Currency Study (JECS), 1(2), pp. 44-55. doi: 10.51178/jecs.v1i2.252.