Vituruch Goodwin. 1997. Application of polybenzoxazine for natural fiber reinforced plastics. Bangkok:Chulalongkorn University;
Vituruch Goodwin. (1997) Application of polybenzoxazine for natural fiber reinforced plastics (รายงานผลงานวิจัย). Chulalongkorn University:Bangkok.
Vituruch Goodwin. Application of polybenzoxazine for natural fiber reinforced plastics. Bangkok:Chulalongkorn University, 1997.
Vituruch Goodwin. (1997) Application of polybenzoxazine for natural fiber reinforced plastics (รายงานผลงานวิจัย). Chulalongkorn University:Bangkok.