Darajat, M., Y. Sipahutar, M. Batubara, B. Febriani, and L. Lubis. “Analysis of the Role of Teacher Learning Community in Improving Pedagogic Competence and Teacher Professionalism in Labuhanbatu Secondary School”. Edumaspul: Jurnal Pendidikan, Vol. 8, no. 2, Oct. 2024, pp. 3843-52, doi:10.33487/edumaspul.v8i2.8505.