"CORRELATION AND PATH COEFFICIENT ANALYSIS OF SOME GROWTH AND YIELD CONTRIBUTING TRAITS IN COWPEA (VIGNA UNGUICULATA (L) WALP.) EXPOSED TO ALPHA-SPIN NANO PARTICLES" (2019) FULafia Journal of Science and Technology, 5(2), ص 18–23. موجود في: https://lafiascijournals.org.ng/index.php/fjst/article/view/225 (تاريخ الوصول: 17 مايو 2026).