Trisnowati E, Sumardi Y. Developing the student worksheet with problem-solving approach to improve critical thinking skills and the concept understanding of physics. Momentum: Physics Education Journal [nternet]. 2019 Jun. 24 [cited 2024 Jul. 22];3(1):32-41. vailable from: http://ejournal.unikama.ac.id/index.php/momentum/article/view/3344