1. A study of suitable meteorological condition for solar collector performance testing for thailand
Pornpimon Phetwattana, Somboon Khongphetsak, Sirinuch Jindarak and Nipon Ketjoy

2. Adoption of supplier development activity to enhance efficiency- a case study of agricultural machinery manufacturing company
Tritos Laosirihongthong and nantaporn Angsakulthorn

3. Air pollutant levels near expressway- comparison of mean values at different conditions
Sudjit Karuchit and Tanyarut Karuchit

4. Cytogenetics of long-tailed macaque, macaca fascicularis (primate, cercopithecidae) in thailand
Alongkoad Tanomtong, Sumpars Khunsook, Wiwat Kaensa and Roungvit Bunjongrat

5. Durability of cement mortar containing black rice husk ash under sodium sulphate and magnesium sulphate attack
Burachat Chatveera, Narongsak Makul and Anan Rodanan

6. Effect of fracture toughness of sapphires on edm properties
Apiwat Muttamara, Yasushi Fukuzawa, Naotake Mohri and Takayuki Tani

7. Effects of quantity of modified tapioca starch and eggwhite powder on texture of fishball
Santakit Niludomsak and Ampawan Tansakul

8. Inventory control in an elastic knitting factory
Nuttapol Puttipong and Thananya Wasusri