Ida Ayu Made Puspa Ratna Dewi. “The Impact of Ice Breaking Techniques (Brain Gym and Yel-Yel) on Lowering Learning Boredom”. Health Research Journal, vol. 1, no. 6, Apr. 2024, pp. 198-04, https://jurnal.cakrabirawamedia.com/index.php/hrj/article/view/50.