Prastuti, A.E., Sarmini, S. and Purnomo, N.H. 2020. Implementation of Contextual Teaching and Learning Social Sciences Subjects to Increase Motivation and Learning Achievement. The Indonesian Journal of Social Studies. 3, 2 (Dec. 2020), 67–73. DOI:https://doi.org/10.26740/ijss.v3n2.p67-73.