Nababan, Berthon Oktora, Yasaratodo Wau, and Sukarman Purba. 2017. “Evaluation of Implementation of Curriculum 2013, In Public Senior High School 7 Binjai, North Sumatera”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 35 (1): 28-36. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/7832.