Boonchoo Somboonpen. ม.ป.ป. Design and test of vegetable oil impregnated polypropylene film capacitors. , ม.ป.พ.;
Boonchoo Somboonpen. (ม.ป.ป.) Design and test of vegetable oil impregnated polypropylene film capacitors . ม.ป.พ./ม.ป.ท.
Boonchoo Somboonpen. Design and test of vegetable oil impregnated polypropylene film capacitors. . ม.ป.ท.:ม.ป.พ., ม.ป.ป.
Boonchoo Somboonpen. (ม.ป.ป.) Design and test of vegetable oil impregnated polypropylene film capacitors . ม.ป.พ./ม.ป.ท.