Hatskevich, A., and J. E. Essilfie. 2013. “SHEA PICKING AS AN ENGINE OF POVERTY REDUCTION IN NORTHERN GHANA (CASE STUDY: FOUR COMMUNITIES IN THE BOLGATANGA MUNICIPALITY)”. European Scientific Journal, ESJ 9 (23). https://doi.org/10.19044/esj.2013.v9n23p%p.