Nael MM. Effects of Happy Emotion Induced by Filipino Children’s Music on the Performance in Addition and Subtraction of Grade I Filipino Pupils. JRPPTTE [Internet]. 2019 Jun. 17 [cited 2024 May 3];9(1):33-45. Available from: https://ejournal.upsi.edu.my/index.php/JRPPTTE/article/view/2344