Natarajan D, Al Sulaimi BH, Lacap EM, Kumar K. A Comparative Study of Student Mathematical Performance in three modes of Teaching and Learning Education during the Covid-19 Pandemic . IJCES [Internet]. 2022 Jun. 29 [cited 2024 Apr. 20];1(1):36-50. Available from: https://ijces.net/index.php/ijces/article/view/1