Mokhtar, Rafidah Hanim, Maizatul Azma Masri, Hanis Hidayu Kasim, and Azizi Ayob. 2018. “The Clinical Significance of Circadian Rhythm and Blood Pressure Variability”. Malaysian Journal of Science Health & Technology 1 (March). https://doi.org/10.33102/mjosht.v1i.15.