Analysis of Shelf Type Flash Dryer Machine in the Process of Drying Purple Leaves (Graptophylum pictum Griff). (2026). Jurnal BETA (Biosistem Dan Teknik Pertanian), 11(2), 468-472. https://doi.org/10.24843/JBETA.2023.v11.i02.p25 (Original work published 2023)