Bagas Saputra M, Aslamiyah S. ANALYSIS OF SIX SIGMA IMPLEMENTATION TO REDUCE FERTILIZER DEFECTS AT PT. PETROKOPINDO CIPTA SELARAS. JS [Internet]. 17Jun.2025 [cited 30Oct.2025];12(2). Available from: https://ojsiibn1.indobarunasional.ac.id/index.php/jursima/article/view/1114