Khatun, S. et al. 2014. Study to assess the status of bupivacaine hydrochloride in the management of essential trigeminal neuralgia. Bangladesh Journal of Physiology and Pharmacology. 26, 1-2 (Aug. 2014), 30–33. DOI:https://doi.org/10.3329/bjpp.v26i1-2.19965.