Pisit Phokharatkul. ม.ป.ป. Invariant Thai printed characters recognition. , ม.ป.พ.;
Pisit Phokharatkul. (ม.ป.ป.) Invariant Thai printed characters recognition . ม.ป.พ./ม.ป.ท.
Pisit Phokharatkul. Invariant Thai printed characters recognition. . ม.ป.ท.:ม.ป.พ., ม.ป.ป.
Pisit Phokharatkul. (ม.ป.ป.) Invariant Thai printed characters recognition . ม.ป.พ./ม.ป.ท.