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คนเพียร ส.; Jumpadang, N. J.; Viwatdecha, A.; Kanokwalai, P.; Tangpulpolwanit, K.; Mahasean, K.; Kraichoo, P.; Woradechananthakul, W.; Sithtisarn, S. Phytochemical Analysis, Antioxidant Activities, and Antibacterial Potential of Piper retrofractum Vahl Leaf Extract. KCSJ 2026, 48, 22-28.