Asangi, Honnappa, and M Vasundhara. 2013. “Effect of Pinching and Growth Regulators on Growth, Herbage Yield, Essential Oil Content and Oil Yield of Patchouli (Pogostemon Patchouli Pellet.)”. Journal of Horticultural Sciences 8 (2): 214-16. https://doi.org/10.24154/jhs.v8i2.304.