Chitra, R., D. Janaki, and P. Jansirani. “Effect of Bio-Inoculants on Growth and Yield of Betel Vine (Piper Betle)”. Journal of Plantation Crops, vol. 48, no. 3, Dec. 2020, pp. 232-6, doi:10.25081/jpc.2020.v48.i3.6631.