M. . Darwis, Y. Anita Siregar, A. . Karimah Siregar, L. . Tussifah Lubis, H. . Pelangi, and M. . Hermanto, “Development of teaching Materials and Training Self Efficacy Teaching module on teacher performance of SMA/MA”, KSS, vol. 8, no. 4, pp. 299–308, Mar. 2023.