Meena J. Panikker, Dr., and Dr. Muhamad Shafi. “Post Graduate Business Education: Tracing through Different Learning Methods in Controversial Subjects Teaching”. International Journal of Engineering & Technology, vol. 7, no. 4.38, Dec. 2018, pp. 768-72, https://doi.org/10.14419/ijet.v7i4.38.27541.