Wannee Lapchinda และ Avapa Chantasartrassmee;Aisuriya Sudprasert. (2025) GDDs with two associate classes and with one group of size 1 and m groups of size n and λ_1=5,λ_2=1. <i>KKU Science Journal</i>, <i>53</i>(2), 185-190.Wannee Lapchinda และ Avapa Chantasartrassmee;Aisuriya Sudprasert. "GDDs with two associate classes and with one group of size 1 and m groups of size n and λ_1=5,λ_2=1". KKU Science Journal 53 (2025):185-190.Wannee Lapchinda และ Avapa Chantasartrassmee;Aisuriya Sudprasert. GDDs with two associate classes and with one group of size 1 and m groups of size n and λ_1=5,λ_2=1. Faculty of Science, Khon Kaen University:ม.ป.ท. 2025.