Faritsy, Ari Zaqi. “Analisis Pengendalian Kualitas Produk Tutup Botol Tipe Flip Top Menggunakan Seven Tools Dan 5W + 1H (What, When, Who, Where, Why, How)”. Jurnal Ilmiah Teknik Industri Prima (JURITI PRIMA) 3, no. 1 (October 3, 2022). Accessed October 19, 2025. https://jurnal.unprimdn.ac.id/index.php/juriti/article/view/2370.