Uraipan, N., Sujaritchai, S., Prakongpak, P. and Somjan, N. (2026) “Operational Development Guidelines of Organic Vegetable Farmers in Chanthaburi Province Using a Reference Model for Supply Chain Operations”, Research and Development Journal, Loei Rajabhat University, 21(76), pp. 27–40. doi: 10.14456/lruj.2026.13.