Mehmood, Q., M. Nadeem, K. Noreen, and R. Ahmad. “Construction of Generalized Neighbor Designs in Circular Blocks of Two Different Sizes”. The Nucleus 59, no. 1 (September 1, 2022): 15–24. Accessed November 22, 2024. http://thenucleuspak.org.pk/index.php/Nucleus/article/view/1179.