Khatun, S., A. K. Biswas, R. Karmakar, S. Dhar, and M. M. K. Parvin. “Study to Assess the Status of Bupivacaine Hydrochloride in the Management of Essential Trigeminal Neuralgia”. Bangladesh Journal of Physiology and Pharmacology, vol. 26, no. 1-2, Aug. 2014, pp. 30-33, doi:10.3329/bjpp.v26i1-2.19965.