Saputra, Mochammad Mirza, et al. “Analysis of Encapsulation Efficiency Bacillus Sp. Based Variations in Sodium Alginate Concentration in the Beads”. Nusantara Science and Technology Proceedings, vol. 2024, no. 39, Feb. 2024, pp. 1-4, https://doi.org/10.11594/nstp.2024.3901.