A. K. BASWAL, H. S. RATTANPAL, and GURUPKAR SINGH SIDHU. 2015. “ASSESSMENT OF POLLEN VIABILITY AND FLORAL BIOLOGY IN SWEET ORANGE (CITRUS SINENSIS OBSECK) CULTIVARS UNDER SUBTROPICAL CONDITIONS OF PUNJAB”. The Bioscan 10 (4):1573-76. https://thebioscan.com/index.php/pub/article/view/1433.