cynorthwyo. prof. vatwong greepala
adran peirianneg sifil ac amgylcheddol,
cyfadran o wyddoniaeth a pheirianneg,
prifysgol kasetsart, chalerm phrakiat gampws Nakhon sakon
e-bost: idin_ku68@hotmail.com
ffôn symudol: 083-3,879,371
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