Al-Sukaini, A.S.T. and AL- Muttairi, W.M.J. 2025. Cleaner Production and Its Role in Improving The Level of Performance (A Survey Study of The Opinions of A Sample Of Workers in The General Company For Fertilizer Industry in The Southern Region). American Journal of Social and Humanitarian Research. 6, 1 (Jan. 2025), 132–146. DOI:https://doi.org/10.31150/ajshr.v6i1.3266.