ANALISA KUALITAS COOLING WATER PADA COOLING WATER SYSTEM DI BUTADIENE PLANT PT XYZ DENGAN METODE SIX SIGMA DAN PDCA. j.intent.j.industri.teknologi.terpadu [Internet]. 2018 Nov. 30 [cited 2025 Aug. 2];1(1):45-57. Available from: https://ejournal.lppm-unbaja.ac.id/index.php/intent/article/view/252