Yousaf, R., Arif, M. ., Ullah, Q., Rafique, S., Hanif, A., & Ali, M. (2019). Daily Activity Related Quality of Life in Chronic Obstructive Pulmonary Disease in Adults. The International Journal of Frontier Sciences, 3(1), 10–23. https://doi.org/10.37978/tijfs.v3i1.44