“A Review on Purification Methods of Bromelain from Pineapple Stems: Bromelain Purification Methods” (2023) Biological Sciences - PJSIR, 66(2), pp. 188–198. Available at: https://biostaging.pjsir.org/index.php/biological-sciences/article/view/3027 (Accessed: 7 March 2026).