ANNAPOORANI ARJUNAN et al. 2026. RAPID ATTENUATED TOTAL REFLECTANCE–FOURIER TRANSFORM INFRARED SPECTROSCOPIC QUANTIFICATION OF ATENOLOL IN ITS MICROSPHERES AND TABLETS: A GREEN APPROACH. Asian Journal of Pharmaceutical and Clinical Research. 19, 4 (Apr. 2026), 90–95. DOI:https://doi.org/10.22159/ajpcr.2026v19i4.58212.