Wahyu Wismanto Hadi, Iim Wasliman, IdaTejawiani, and Faiz Karim Fatkhullah. “Building The Concept Of Strengthening Middle Managers Through Managerial Skills Program ( Strengthening The Organization Through Strengthening Middle Management )”. International Journal of Educational Research &Amp; Social Sciences, vol. 3, no. 1, Feb. 2022, pp. 374-81, doi:10.51601/ijersc.v3i1.285.