หงษ์ยิ้ม น. and มิตะถา ส. 2018. Designing Controlling system and Long Range Data-logging Systems for Smart Agriculture using APRS protocols. RMUTL Engineering Journal. 3, 1 (Jan. 2018), 19–29. DOI:https://doi.org/10.14456/rmutlengj.2018.4.