Hassan, J. J.; Hamzah, M. Halangan-Halangan Pengurusan Sekolah Rendah Dalam Mewujudkan Sekolah Berkesan Di Zon Utara (Perlis, Kedah Dan Pulau Pinang): Tindakan Dan Keperluan Guru Besar Dan Guru-Guru Penolong Kanan Menanganinya: The Primary School Management Obstacles in Establishing Effective School in the Northern Zone (Perlis, Kedah and Pulau Pinang): Actions and the Needs of the Headmasters. JPB 2020, 13, 12-28.