Sakulkietsarut, Paweerisa, Kornkamon Nikhomchaiprasert, and Witthaya Meesen. 2019. “Knowledge, Personal Relationship and the Efficiency of the Proposal Submission to the Cabinet”. Journal of Health Science of Thailand 28 (1):142-53. https://thaidj.org/index.php/JHS/article/view/5921.