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“ANTI-ACNE HYDROGEL PATCH FROM JATROPHA (Jatropha Curcas L.) STEM EXTRACT: PLESTER HIDROGEL ANTIJERAWAT DARI EKSTRAK BATANG TANAMAN JARAK (Jatropha curcas. L)”, fj, vol. 6, no. 1, pp. 295–304, Feb. 2026, doi: 10.51771/fj.v6i1.2108.