อินทพรหม ว. SAMPLE SIZE AND SAMPLING IN QUALITATIVE RESEARCH. Phranakhon Rajabhat Research Journal : Humanities and Social Sciences, [S. l.], v. 14, n. 1, p. 442–458, 2019. Disponível em: https://so05.tci-thaijo.org/index.php/PNRU_JHSS/article/view/151135. Acesso em: 11 dec. 2025.