Shulhuly Ashfahani, and Veronika Setyadji. “Develop of Effective Communications for Formal and Moral Learning”. ICHELSS: International Conference on Humanities, Education, Law, and Social Sciences, vol. 1, no. 1, July 2021, pp. 461-9, https://journal.unj.ac.id/unj/index.php/hispisi/article/view/22191.