TY - BOOK AU - Omari, Issa Mcholo TI - Motivation, instruction, learning and human performance: a practical guide for teachers on how to improve students performance SN - 978-9976-4-0432-6 AV - LB 1028 .O43 2011 PY - 2011/// CY - Dar es Salaam PB - Oxford University Press KW - motivaltion systems ER -