Purbowati, Ike, Ali Maksum, Gunawan Wijonarko, M A Ridhani, & Hana Hanifa. " THE EFFECT OF VARIATION OF IMMOBILIZATION TIME AND CONCENTRATION ROCELLA (Hibiscus sabdariffa L.) EXTRACT ON CHARACTERISTICS AND EVALUATION OF TIME TEMPERATURE INDICATOR." Proceeding ICMA-SURE [Online], (2024): 286-293. Web. 13 Jul. 2025