Wulandari, Pradea. “DESIGNING A SMARTPHONE-BASED RETNO HEALTHY HOME APPLICATION USER INTERFACE AND EVALUATION OF THE SYSTEM USABILITY SCALE (SUS)”. JURNAL ILMU KESEHATAN BHAKTI SETYA MEDIKA 6, no. 1 (September 22, 2021): 21-29. Accessed September 20, 2024. https://jurnal.poltekkes-bsi.ac.id/index.php/bsm/article/view/50.