Items where Author is "Gaol, Vetty Lumban"

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Gaol, Vetty Lumban (2022) Kehidupan Sosial Ekonomi Petani Kopi Di Desa Hutapaung Utara Kecamatan Pollung Kabupaten Humbang Hasundutan. Undergraduate thesis, UNIMED.

This list was generated on Mon Feb 16 10:48:02 2026 WIB.