Muhammad Waseem, Ayman Khalid, Bushra Khalil and Muhammad Saleem 2021. Impact of Corruption on Economic Growth in Nigeria: Greases or Sand the Wheel Hypothesis. Meritorious Journal of Social Sciences and Management (E-ISSN# 2788-4589 | P-ISSN#2788-4570). 4, 1 (Oct. 2021), 1-9.