Chulaporn Ramsiri. 1997. Development and validation of modified dietary assessment of vitamin A intake in northern preschool children. Bangkok:Mahidol University;
Chulaporn Ramsiri. (1997) Development and validation of modified dietary assessment of vitamin A intake in northern preschool children (รายงานผลงานวิจัย). Mahidol University:Bangkok.
Chulaporn Ramsiri. Development and validation of modified dietary assessment of vitamin A intake in northern preschool children. Bangkok:Mahidol University, 1997.
Chulaporn Ramsiri. (1997) Development and validation of modified dietary assessment of vitamin A intake in northern preschool children (รายงานผลงานวิจัย). Mahidol University:Bangkok.