Ningtyas, A., A. Mudigdo, and B. Murti. “Does Circadian Rhythm and Environment Factor Affect the Risk of Breast Cancer? A New Evidence from Kediri, East Java”. Journal of Epidemiology and Public Health, vol. 4, no. 1, Jan. 2018, pp. 20-29, https://jepublichealth.com/index.php/jepublichealth/article/view/97.