Sugianto, Mona, Zainal Abidin, Urip Purwono, and Juke Siregar. “Making a Better World from the Children’s Perspective: How to Make Compassion Contagious”. Opción 350 (October 19, 2019): 1102-1021. Accessed October 31, 2025. https://produccioncientifica.luz.edu.ve/index.php/opcion/article/view/32278.