1.
Sunaringtyas A, Asikin M, Junaedi I. The Student’s Analysis of Creative Thinking Process in Solving Open Problems viewed from Wallas Model on Problem Based Learning Model. UJME [Internet]. 30Nov.2017 [cited 21Oct.2020];6(3):287-93. Available from: https://journal.unnes.ac.id/sju/index.php/ujme/article/view/16084