Rashid, Bisma, et al. “Comparing The Validity Of Electronic Color Vision Test With Conventional Ishihara Pseudoisochromatic Plate Test: Validity Of Electronic Color Vision Test”. Pakistan BioMedical Journal, vol. 4, no. 2, Dec. 2021, pp. 156-9, https://doi.org/10.54393/pbmj.v4i2.96.