Purwandari BE, Supriyatin S, Ristanto RH. The Development of creative thinking and problem-solving skill instrument of plant growth in high school. Biosfer [Internet]. 2022 Oct. 27 [cited 2024 Nov. 22];15(2):302-1. Available from: https://journal.unj.ac.id/unj/index.php/biosfer/article/view/26535