“Prevalence of Premenstrual Syndrome and Changes in Blood Pressure with Menstrual Cycle Among University Students” (2021) Nigerian Journal of Physiological Sciences, 33(2), पृ. 117–124. पर उपलब्ध: https://ojshostng.com/index.php/njphysiologicalsciences/article/view/1898 (अंतिम उपयोग: 4 अप्रैल 2026).