Din, R. bin. 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. MRJ 2021, 10, 106-118.