Spectroscopic Assessment of the Shoe Polishes Produced From Waste PET Bottles and Pure Water Sachets: Finger printing of show polish from waste plastics. Journal of Science and Technology, [S. l.], v. 44, n. 1, p. 136–151, 2026. Disponível em: https://journal.knust.edu.gh/index.php/just/article/view/1884. Acesso em: 11 jun. 2026.