Lūi-pia̍t:Piperazines

Tī Wikimedia Commons téng ê siong-koan tóng-àn: Piperazines

Pún lūi-pia̍t ê chú-iàu bûn-chiuⁿ sī Piperazine.

Tī lūi-pia̍t "Piperazines" ê ia̍h

Chit ê lūi-pia̍t kan-taⁿ ū ē-kha chit ia̍h.

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