Punyisa Mongkolbovornkij. ม.ป.ป. Production of methyl ester from free fatty acid by sulphated zirconia catalyst. , ม.ป.พ.;
Punyisa Mongkolbovornkij. (ม.ป.ป.) Production of methyl ester from free fatty acid by sulphated zirconia catalyst . ม.ป.พ./ม.ป.ท.
Punyisa Mongkolbovornkij. Production of methyl ester from free fatty acid by sulphated zirconia catalyst. . ม.ป.ท.:ม.ป.พ., ม.ป.ป.
Punyisa Mongkolbovornkij. (ม.ป.ป.) Production of methyl ester from free fatty acid by sulphated zirconia catalyst . ม.ป.พ./ม.ป.ท.