1.
Norzilawati, Kartini, Hutapea NM. Development of test instruments to measure mathematical problem-solving skills in quadrilaterals and triangles. JA [Internet]. 2024 Aug. 30 [cited 2024 Nov. 23];7(1):132-4. Available from: https://journal.upp.ac.id/index.php/absis/article/view/2481