Purba, E. Y. and Idawati, L. . . (2025) “The Role of Instructional Leadership in Improving the Performance of Primary School Teachers Without Relevant Educational Background in the Subjects They Teach”, Cerdika: Jurnal Ilmiah Indonesia, 5(11), pp. 2435–2447. doi: 10.59141/cerdika.v5i11.2754.