Effects of Biopolymer Surfactants on the Morphology and Optical Properties of Zinc Sulphide (ZnS) Nanocrystalline Thin Film - Dorathy Awing, Avit; Chin, Suk Fun; Noor Azie Azura, Mohd Arif; Sahbudin, Shaari (Universiti Sains Malaysia, 2019)