Syed Muhammad Shakir Bukhari, Rehman Akhtar. IMPROVEMENT OF QUALITY AND WASTES CONTROL OF SOAP MANUFACTURING USING SIX SIGMA ANALYSIS. PRJ [Internet]. 2024 Nov. 25 [cited 2025 Mar. 10];2(4):727-3. Available from: https://theprj.org/index.php/1/article/view/123