Mwanga, John Workplace environment and employees productivity in the upstream oil and gas industry in Tanzania/ John Mwanga - Dar es Salaam: University of Dar es Salaam, 2023. - xi, 46p.: ill.; 30cm. Includes: Bibliographical references.Thesis: (MFA-OG) Subjects--Topical Terms: Petroleum Industry and tradeOil industryGas industryEmployees LC Class. No.: THS EAF HD9560.9A1T34M836