Ali, Major Saqib, et al. “COMPARISON BETWEEN LOSS VARIANCE OF TENDENCY–ORIENTED PERIMETRY AND NORMAL STRATEGY PERIMETRY USING OCTOPUS 32 PROGRAM: Octopus 32 Program”. Pakistan Armed Forces Medical Journal, vol. 62, no. 2, June 2012, https://www.pafmj.org/PAFMJ/article/view/1678.