Mahfud, M. (2014). Optimalisasi Pembelajaran IPS Pada Siswa Kelas VI Melalui Metode Contextual Teaching And Learning (CTL): Optimization of Social Studies Learning for Class VI Students Through Contextual Teaching And Learning (CTL) Methods. Pedagogia : Jurnal Pendidikan, 3(2), 119–126. https://doi.org/10.21070/pedagogia.v3i2.63