Bannaga Taha Al-Zubair and El-Zain El-Khalefa El-khder (2021) “OBSTACLES HINDERING THE IMPLEMENTATION OF STRATEGIC PLANNING FROM SECONDARY SCHOOL PRINCIPALS IN KHARTOUM STATE”, Managere: Indonesian Journal of Educational Management, 3(3), pp. 118–129. doi: 10.52627/managere.v3i3.81.