Yoga Saputra, S., D. Y. Puji Sugiharto, and A. Awalya. “The Effect of Principal’s Leadership and Professional Competency on The Performance of School Counselors”. Jurnal Bimbingan Konseling, Vol. 10, no. 3, Oct. 2021, pp. 161-7, doi:10.15294/jubk.v10i3.51285.