Dewi, Yohana Puspita, Purna Wiratno, and Destia Herlisya. 2023. “An Effect of Using Group Investigation Method to Improving Critical Thinking Skill”. IJLHE: International Journal of Language, Humanities, and Education 6 (2):93-100. https://jurnal.stkippgribl.ac.id/index.php/ijlhe/article/view/1362.