Pelestarian hutan melalui kegiatan agroforestri kopi (studi kasus kelompok tani Selaras alam di Nagari Lasi, Kec. Canduang, Kab. Agam, Sumatra Barat =
Forest conservation through coffee agroforestry (case study of selaras alam farmer group in nagari lasi, kecamatan canduang, kabupaten agam, west sumatera) / Hiria