Quality assessment of red bean (Phaseolus vulgaris L.) sheet jam with varying concentration of red beetroot puree (Beta vulgaris L.). JITIPARI [Internet]. 2026 Jun. 18 [cited 2026 Oct. 9];11(2):85-103. Available from: https://ejurnal.unisri.ac.id/index.php/jtpr/article/view/11835