“Comparative Evaluation of the Efficacy and Safety of 0.5% Hyperbaric Ropivacaine Versus 0.5% Hyperbaric Bupivacaine in Spinal Anaesthesia-150 Cases”, Planet (Barisal), vol. 9, no. 03, pp. 152–155, May 2026, doi: 10.5281/zenodo.20277599.