Mawaddah, Maulina, and Eka Sylviana Siregar. 2026. “The Effect of Using A Digital Nutrition Application on The Knowledge and Attitudes of Mothers With Children Aged 1–5 Years Regarding Undernutrition ”. Jurnal Ners 10 (1):2172-78. https://doi.org/10.31004/jn.v10i1.54441.