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M Gita Jayanata, Mira Irmawati, Lilik Djuari and Sri Umijati. The relationship between socio-economic statuses to nutritional status of first grade students in private primary school in north Surabaya. World Journal of Advanced Research and Reviews, 2022, 13(1), 473-480. Article DOI: https://doi.org/10.30574/wjarr.2022.13.1.0023