Din, R. bin 2021. The Practice Level Amongst Middle Leaders Teachers of School to Increase Quality of Teachers and Achievements of Students Refer to Standard Quality Education of Malaysia Wave 2: Pengamalan Pemimpin Pertengahan Bagi Meningkatkan Kualiti Guru dan Pencapaian Murid Merujuk Standard Kualiti Pendidikan Malaysia gelombang 2. Management Research Journal. 10, (Oct. 2021), 106–118. DOI:https://doi.org/10.37134/mrj.vol10.sp.9.2021.