Phetcharayud Sae-lee และ Wachira Wichitphongsa;Hathaithanok Puongyaem. (2021) A Study of Attitudes and Affecting factors for Purchasing Herbal Cosmetics in Undergraduate Group in Phitsanulok Province to Penetrate the New Customers Group. <i>Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University</i>, <i>15</i>(2), 483-501.Phetcharayud Sae-lee และ Wachira Wichitphongsa;Hathaithanok Puongyaem. "A Study of Attitudes and Affecting factors for Purchasing Herbal Cosmetics in Undergraduate Group in Phitsanulok Province to Penetrate the New Customers Group". Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University 15 (2021):483-501.Phetcharayud Sae-lee และ Wachira Wichitphongsa;Hathaithanok Puongyaem. A Study of Attitudes and Affecting factors for Purchasing Herbal Cosmetics in Undergraduate Group in Phitsanulok Province to Penetrate the New Customers Group. Pibulsongkram Rajabhat University:ม.ป.ท. 2021.