Nugroho, Mochamad, Amiliana Soesanto, Renan Sukmawan, Aryo Kuncoro, Dewiana Kusmana, Poppy Roebiono, M Munawar, and Ganesja Harimurti. 1. “Right Ventricular Function Assessment Using Speckle Tracking Method In Chronic Obstructive Pulmonary Disease”. Indonesian Journal of Cardiology 31 (3), 156-64. https://doi.org/10.30701/ijc.v31i3.127.