S. M. Chiroma, C. N. M. Taib, M. A. M. Moklas, M. T. H. Baharuldin, Z. Amom, and S. Jagadeesan, “The use of nootropics in Alzheimer’s disease: is there light at the end of the tunnel?”, BMRAT, vol. 6, no. 1, pp. 2937-2944, Jan. 2019.