Aziz Rizqi Pratama M, Cahyono E, Ulung Aggraito Y. Implementation of Problem Based Learning Model to Measure Communication Skills and Critical Thinking Skills of Junior High School Students. JISE [Internet]. 9Dec.2019 [cited 10May2024];8(3):324 -331. Available from: https://journal.unnes.ac.id/sju/jise/article/view/30788