Syafira, Syafira, et al. “Identification of Water Vapour Transmission Rate (WVTR) of Aluminum Foil Packaging Barrier Using The Gravimetric Testing Method”. Jurnal Ilmiah Publipreneur, vol. 6, no. 1, Sept. 2020, pp. 49-54, doi:10.46961/jip.v6i1.80.