SARANYA S, D.V. et al. 2025. 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. 32, S1 (2025): Posted 12 May (Aug. 2025), 596–602.