OhajiD. E., MusaM., MomohM., AkpootuD. O., and BelloG. “CONSTRUCTION AND PERFORMANCE EVALUATION OF TWO STAGED THREE BLADED SAVONIUS VERTICAL AXIS WIND ENERGY CONVERSION SYSTEM”. FUDMA JOURNAL OF SCIENCES, Vol. 6, no. 6, Jan. 2023, pp. 76 -88, doi:10.33003/fjs-2022-0606-1143.