Supachai Nuchit และ Thanakorn Lattirasuvan;Piyapit Khonkaen;Teeke Yatapakdee. (2023) Cost Analysis of Seedling Production at Northern Forest Seed Centre. <i>Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University</i>, <i>17</i>(2), 755-766.Supachai Nuchit และ Thanakorn Lattirasuvan;Piyapit Khonkaen;Teeke Yatapakdee. "Cost Analysis of Seedling Production at Northern Forest Seed Centre". Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University 17 (2023):755-766.Supachai Nuchit และ Thanakorn Lattirasuvan;Piyapit Khonkaen;Teeke Yatapakdee. Cost Analysis of Seedling Production at Northern Forest Seed Centre. Pibulsongkram Rajabhat University:ม.ป.ท. 2023.