This employment certificate certifies that Scott R. Doster was employed by The Duke's Asia Management Company Limited as an Executive Chef Manager from March 5, 2014 to the present. In this role, he oversaw consulting, creative work, menu design, quality control, and production for The Dukes 1, 2, 3 restaurants and The River Market in Chiang Mai, Thailand. He also opened Ragu Italian Restaurant at Promenada in April 2014. The certificate confirms that Mr. Doster resigned voluntarily and the company wishes him success in his future career.
การผลิตไบโอดีเซลจากน้ำมันสบู่ดำโดยใช้เถ้าธรรมชาติเป็นตัวเร่งปฏิกิริยา
(Biodiesel production from Jatropha curcas L. seed oil using natural wood-ashes as catalysts)
โดย นายศิริวุฒิ บัวสมาน