anam, M.K. et al. 2023. The Application of Usability Testing to Analyze the Quality of Android-Based Acupressure Smart Chair Applications. MATRIK : Jurnal Manajemen, Teknik Informatika dan Rekayasa Komputer. 22, 2 (Mar. 2023), 217–226. DOI:https://doi.org/10.30812/matrik.v22i2.2312.