Iqbal, Muhammad Zaffar, and Sultan Ahmad Khan. “GENETIC VARIABILITY, PARTIAL REGRESSION, CO-HERITABILITY STUDIES AND THEIR IMPLICATION IN SELECTION OF HIGH YIELDING POTATO GENOTYPES”. Biological Sciences - PJSIR 46, no. 2 (April 28, 2003): 126–128. Accessed July 22, 2024. https://v2.pjsir.org/index.php/biological-sciences/article/view/1607.