Kusumawati, N., A. Bahar, M. M. S. Basukiwardojo, S. Samik, N. T. Rahayu, I. W. Estiningtyas, and M. R. H. Kurniawan. “Development of Active-Smart Packaging: Effect of Chitosan Nanofiber, Zinc Oxide Nanoparticles, and Anthocyanin on Gelatine-Based Halochromic Film for Meat Preservation”. Journal of Engineering and Technological Sciences, vol. 57, no. 3, June 2025, pp. 373-88, doi:10.5614/j.eng.technol.sci.2025.57.3.7.