“Normal Limits of Electrocardiogram and Cut-Off Values for Left Ventricular Hypertrophy in Young Adult Nigerians” (2021) Nigerian Journal of Physiological Sciences, 29(1), hlm. 063 –066. Tersedia pada: https://www.ojshostng.com/index.php/njphysiologicalsciences/article/view/1808 (Diakses: 8 Juli 2026).