[1]
Kartini, K. et al. 2019. Analysis of Validation Development Learning Model Attainment Concept to Improve Critical Thinking Skills and Student Learning Outcomes. Jurnal Penelitian Pendidikan IPA. 5, 2 (Jun. 2019), 185–188. DOI:https://doi.org/10.29303/jppipa.v5i2.262.