Sukriti Rampal, Sparsh Gupta, Shubhang Verma, Dinesh K. Vishwakarma. “Image Captioning Using IndRNN”. International Journal of Advanced Science and Technology, Vol. 29, no. 08, June 2020, pp. 2211 -7, http://sersc.org/journals/index.php/IJAST/article/view/23362.