Alia, Okta, and Rida Emelia. “Pengkajian Mutu Produk Vitamin D3 Sirup Di PT. Pyridam Farma Tbk. Terhadap Peningkatan Kualitas Kesehatan”. Jurnal sosial dan sains 1, no. 10 (October 15, 2021): 1.337 – 1.348. Accessed November 15, 2024. https://sosains.greenvest.co.id/index.php/sosains/article/view/240.