KUNPHICHAIJIRAWUT, N. A study of the problem of paying the enrollment fees beyond the specified period of students from Sisaket Rajabhat University: ณัชชารีย์ กุลพิชัยจิราวุฒิ1* Natcharee Kunphichaijirawut1* มหาวิทยาลัยราชภัฏศรีสะเกษ Sisaket Rajabhat University Corresponding Author : wan.natcharee@gmail.com. Research and Development Journal Sisaket Rajabhat University, Sisaket, Thailand, v. 10, n. 1, p. 32–44, 2023. Disponível em: https://so01.tci-thaijo.org/index.php/sskru-resarch/article/view/264956. Acesso em: 17 sep. 2026.