Usability test of the “Denia-IS” mobile application for sustainability high-risk pregnancy early detection in rural areasMekar Dwi Anggraeni, Endang Triyanto, Asep Iskandar, Amin Fatoni and Najwa NiyomdechaE3S Web Conf., 609 (2025) 04003DOI: https://doi.org/10.1051/e3sconf/202560904003