Yerizon, Sukestiyarno, Arnellis, Suherman, and Kelly Angelly Hevardani. “Analysis of students’ Mental Construction in Understanding the Concept of Partial Derivatives Based on Action-Process-Object-Schema Theory”. Nurture 18, no. 4 (August 9, 2024): 735–749. Accessed October 16, 2024. https://nurture.org.pk/index.php/NURTURE/article/view/798.