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Manah, N.S.A. and Sulaiman, L. and Azman, N.L.S.M. and Abidin, Zul Hazrin Zainal and Tajuddin, Hairul Anuar and Halim, Norhana Abdul (2019) Colour analysis of organic synthetic dye coating paint films consisting 4-hydroxycoumarin derivatives after exposed to UV-A. Materials Research Express, 6 (7). 076418. ISSN 2053-1591, DOI https://doi.org/10.1088/2053-1591/ab11e9.