Sambasevam, Kavirajaa Pandian, Yunos, Norfateha, Mohd Rashid, Hasaratul Nadiah, Baharin, Siti Nor Atika, Suhaimi, Nur Farahin, Raoov, Muggundha, AND Shahabuddin, Syed. " Optimization of Natural Colour Extraction from Dragon Fruit (Hylocereus polyrhizus) Peel" Scientific Research Journal [Online], Volume 17 Number 2 (25 August 2020)