Puspitasari, J., J. Sutarto, S. E. Pramono, and Y. Sutopo. “Smartphone - Based Apk Sociologi.Q Learning Media to Improve Students’ High Order Thinking Skills (Hots)”. International Conference on Science, Education, and Technology, vol. 9, no. 1, Sept. 2023, pp. 382-8, https://proceeding.unnes.ac.id/ISET/article/view/2448.