Venkatesh. S, L.V.Vigneshwaran, Mohamed Ishaq Mushrif M.N.L, Jothi Sree.S, Abinaya.M and Vinotha.S 2026. IMMUNOASSAYTECHNIQUES: PRINCIPLES, CLASSIFICATION, ADVANCEMENTS, AND APPLICATIONS—A COMPREHENSIVE REVIEW. International Journal of Pharmacy and Analytical Research. 15, 1 (Jan. 2026), 1–8.