W. K. Ikhwan, “Implementasi Standar Isi, Standar Proses, Standar Lulusan Sebagai Standar Mutu pendidikan MTs Negeri Di kabupaten Tulungagung: Implementation of Content Standards, Process Standards, Graduate Standards as Quality Standards for State MTs Education in Tulungagung District”, pedagogia, vol. 4, no. 1, pp. 16–22, Feb. 2015.