Somsak Kaewploy. (2015) Optimal Parameters in Precipitation Hardening of 6061 Aluminium Alloy Using Box-Behnken Design. <i>KKU Research Journal</i>, <i>20</i>(4), 369-380.Somsak Kaewploy. "Optimal Parameters in Precipitation Hardening of 6061 Aluminium Alloy Using Box-Behnken Design". KKU Research Journal 20 (2015):369-380.Somsak Kaewploy. Optimal Parameters in Precipitation Hardening of 6061 Aluminium Alloy Using Box-Behnken Design. Research and Technology Transfer Affairs Division:ม.ป.ท. 2015.