The reference document.1. thawibun automatic thawatchai gulls. 2. Bangkok sky konfai machines: imprint promotional achiwa, 2533 Center.2. the electric power industry. The story about engineers 2. Bangkok: c ed u k, 2550.
Reference 1. Thawatchai Thaihotel Mr. Guerin. Electromechanical 2: The Publisher Center, Cal Poly, 2533. 2. Electricity Industry. Knowledge for Engineers No. 2. Bangkok: SE session, in 2550.
Reference 1. From growing อัตถ Gul. Mechanical, electrical, 2 Bangkok: Publishing Center, ส่งเสริมอาชีวะ 2533. 2. Electric industry. Discussion for the 2, Bangkok: ซีเอ็ดยูเคชั่น 2550. .