Nramat, W., W. Traiphat, P. Sukruan, P. Utaprom, S. Namgaew, S. Sodajaroen, R. Chatpuk, and L. Phetduang. “Development of a Bio-Fertilizer Machine (Holmon Egg) Integrated With NPK Sensor Technology for Enhancing Organic Vegetable Production in Sufficiency Community Enterprises”. International Journal of Geoinformatics, vol. 20, no. 3, Apr. 2024, pp. 8-16, doi:10.52939/ijg.v20i3.3121.