Jatuporn Ratanapaka. 1992. A study of the properties of calcium carbonate filled plasticised PVC. Bangkok:Mahidol University;
Jatuporn Ratanapaka. (1992) A study of the properties of calcium carbonate filled plasticised PVC (รายงานผลงานวิจัย). Mahidol University:Bangkok.
Jatuporn Ratanapaka. A study of the properties of calcium carbonate filled plasticised PVC. Bangkok:Mahidol University, 1992.
Jatuporn Ratanapaka. (1992) A study of the properties of calcium carbonate filled plasticised PVC (รายงานผลงานวิจัย). Mahidol University:Bangkok.