SAENGPAO, C.; KONGKAEW, T. RETURN AND RISK ANALYSIS OF HEALTH CARE SERVICE SECTOR IN PRE-COVID-19 PERIOD AND DURING THE OUTBREAK USING THE CAPITAL ASSET PRICING MODEL (CAPM). RMUTT GLOBAL BUSINESS ACCOUNTING AND FINANCE REVIEW, Pathum Thani, Thailand, v. 6, n. 2, p. 1–13, 2022. Disponível em: https://so01.tci-thaijo.org/index.php/GBAFR/article/view/261827. Acesso em: 27 aug. 2026.