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Diakses 25 Februari 2020WHO. https://www.who.int/elena/bbc/zinc_stunting/en/
Diakses 25 Februari 2020NIH. https://ods.od.nih.gov/factsheets/Zinc-HealthProfessional/
Diakses 25 Februari 2020Healthline. https://www.healthline.com/nutrition/best-foods-high-in-zinc#section11
Diakses 25 Februari 2020