Sarkar, P. K., H. Z. Rahman, M. Chandra, A. Ahmed, M. E. U. Islam, A. K. Shaikh, R. I. Zahid, G. Mondal, A. Nayeem, and A. Momin. “Factors Influencing Development of Depressive Illness Among Parkinson’s Disease Patients”. Journal of National Institute of Neurosciences Bangladesh, vol. 5, no. 2, Sept. 2019, pp. 106-10, doi:10.3329/jninb.v5i2.43013.