“ON THE CONSTRUCTION AND EVALUATION OF NINE-TREATMENT INCOMPLETE-BLOCK DESIGNS OF ORDER THREE FROM SOME QUASI-SEMI-LATIN SQUARES”. The Transactions of the Nigerian Association of Mathematical Physics 22 (July 21, 2025): 43–54. Accessed September 20, 2025. https://nampjournals.org.ng/index.php/tnamp/article/view/555.