Sujatha B, Jagatheesan Alagesan, Tinu Priya R, and Sarumathi S. “Physical Intervention to Relieve Pain in Women With Primary Dysmenorrhoea-A New Perspective”. International Journal of Research in Pharmaceutical Sciences, vol. 11, no. 4, Oct. 2020, pp. 5071-5, https://ijrps.com/home/article/view/553.