อินทรประไพ สุวัฒน์. 2018. “A STUDY OF RISK FACTORS AND SATISFACTION SURVEY IN THE INTHANIN BULLETPROOF VESTS FOR GOVERNMENT OFFICERS ON PHETCHABUN PROVINCE: Suwat Intaraprapai”. Journal of MCU Social Science Review 7 (2). Ayutthaya, Thailand:190-204. https://so03.tci-thaijo.org/index.php/jssr/article/view/132826.