Widiyanti, Y., Arum, J., Sukenti, E., Alfidayani, A. and Herawati, D. (2022) “Impelemtation of Lesson Study Based STEM Learning to Stidents’ Creativity and Concept Mastery Through Joint Project”, Journal of Learning Improvement and Lesson Study, 2(1), pp. 46-52. doi: 10.24036/jlils.v2i1.17.