Evaluating the Stability of Red Dragon Fruit (Hylocereus polyrhizus) as Natural Dyes: Impact of Concentration, pH and Storage Duration. Gravitasi [Internet]. 2024 Dec. 31 [cited 2026 Sep. 30];23(2):67-75. Available from: https://bestjournal.untad.ac.id/index.php/GravitasiFisika/article/view/17434