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H. Kadoo F, فرح. The Minimal Blocking Set Of Size 22 In PG ( 2 , 13 ). RJCSM [Internet]. 2025 Jun. 25 [cited 2025 Sep. 10];7(2):77-88. Available from: https://edusj.uomosul.edu.iq/index.php/csmj/article/view/36365