Dapa, P. T. N, & Elannor, C. M. V. A. (2020). Analysis of Problem-Solving Skills of Seventh Grade Students of Indonesia Institute of Yogyakarta Junior High School in Triangle Materials After the Implementation of Problem-Based Learning Model. In Y. D. Kristanto, A. H. Panuluh, B. Utomo, & P. Angelina (Eds.), Companion Proceedings of the 7th South East Asia Design Research International Conference (SEADRIC 2019) (pp. 17–27). Yogyakarta: Sanata Dharma University Press. doi: 10.24071/seadr.2019.04
Dapa, Philomena Theresia Nggowa, and Philomena Theresia Nggowa. “Analysis of Problem-Solving Skills of Seventh Grade Students of Indonesia Institute of Yogyakarta Junior High School in Triangle Materials After the Implementation of Problem-Based Learning Model.” Companion Proceedings of the 7th South East Asia Design Research International Conference (SEADRIC 2019), edited by Yosep Dwi Kristanto et al., Sanata Dharma University Press, Yogyakarta, 2020, pp. 17–27.
Dapa, Philomena Theresia Nggowa, and Philomena Theresia Nggowa. “Analysis of Problem-Solving Skills of Seventh Grade Students of Indonesia Institute of Yogyakarta Junior High School in Triangle Materials After the Implementation of Problem-Based Learning Model.” In Companion Proceedings of the 7th South East Asia Design Research International Conference (SEADRIC 2019), edited by Yosep Dwi Kristanto, Albertus Hariwangsa Panuluh, Beni Utomo, and Patricia Angelina, 17–27. Yogyakarta: Sanata Dharma University Press, 2020. https://doi.org/10.24071/seadr.2019.04.
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