SARANYA S, DR VIDYA, et al. “COMPARISON OF INTRATHECAL NALBUPHINE IN DIFFERENT DOSES AS AN ADJUVANT TO HYPERBARIC BUPIVACAINE IN PERCUTANEOUS NEPHROLITHOTOMY: A RANDOMIZED CONTROLLED STUDY”. TPM – Testing, Psychometrics, Methodology in Applied Psychology, vol. 32, no. S1 (2025): Posted 12 May, Aug. 2025, pp. 596-02, https://tpmap.org/submission/index.php/tpm/article/view/226.