Preeda Chittarom and Jingtair Siriphanich (1993) “Gases and Vapor Permeability to Carnauba and Shellac Coatings”, Agriculture and Natural Resources. Bangkok, Thailand, 27(5), pp. 65–70. available at: https://li01.tci-thaijo.org/index.php/anres/article/view/241742 (accessed: 17 September 2026).