Bahri, Moh. Syaeful, Totok Sumaryanto Florentinus, and Haryono Haryono. 2019. “Development of Nested-Integrated Learning Model in Indonesian Subjects Based on 21st Century Learning”. Innovative Journal of Curriculum and Educational Technology 9 (1), 10-16. https://doi.org/10.15294/ijcet.v9i1.33130.