Bhuiyan, M. N. I., Begum, J. and Anwar, M. (2013) “Volatile constituents of essential oils isolated from leaf and inflorescences of Piper longum Linn”., Chittagong University Journal of Biological Sciences, 3(1), pp. 77–85. doi: 10.3329/cujbs.v3i1.13408.