Grade Komposisi Vitamin A Air Susu Ibu (ASI) pada Penyimpanan Microkontroler Arduino Nano dengan Penyimpanan pada Lemari Pendingin dan Suhu Ruangan: Comparison Between the Grade of Vitamin A in Breast Milk Stored in Arduino Nano Microcontroller Storage and the One Stored in Refrigerator and Room Temperature. (2020). Poltekita : Jurnal Ilmu Kesehatan, 14(2), 100-103. https://doi.org/10.33860/jik.v14i2.172