Sri Rachmayanti A, Hasan N, Suci Fitriani Sammulia, Henny Rachdiati, Yeni Febriyanti. Antioxidant activity test of packaged juice variants of guava (psidium guajava L.) using FRAP (ferric reducing antioxidant power) method. midwifery [Internet]. 2023 Jun. 17 [cited 2026 Feb. 25];11(2):322-8. Available from: https://midwifery.iocspublisher.org/index.php/midwifery/article/view/1257