Chee Huei Phing, and Ong Yong Chee. 2019. “EFFECTS OF ALPHA-S1-CASEIN TRYPTIC HYDROLYSATE AND L-THEANINE ON SLEEP DISORDER AND PSYCHOLOGICAL COMPONENTS: A RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED STUDY”. Malaysian Journal of Public Health Medicine 19 (1):47-55. https://doi.org/10.37268/mjphm/vol.19/no.1/art.36.