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Books about Yumana:
RECETARIO INDIGENA DE BAJA CALIFORNIA. K'miai, pa'-ipai, kiliwa, cacap y cochimi. Prcticas alimenticias de... by Irais Pinon Flores (Jan 1, 2000)
Wiki information Yumana:
Yumana Takagi is a member of the Japanese musical group SKE48.
Jumana is an extinct, poorly attested, and unclassified Arawakan language. Kaufman placed it in his Río Negro branch, but this is not followed in Aikhenvald.