S. . Athar, “COMPARISON OF CARDIOPULMONARY FITNESS, LEVEL OF PHYSICAL ACTIVITY AND QUALITY OF LIFE IN 2ND AND 3RD TRIMESTER OF PREGNANCY: A CROSS-SECTIONAL STUDY”, IJHR, vol. 3, no. 12, pp. 510–521, Dec. 2025, doi: 10.71000/7m4mmt93.