Dampak penanaman kopi dan kulit manis di lereng pergunungan terhadap intensitas erosi. Studi Kasus di Kecamatan Gunung Raya Kawasan Taman Nasional Kerinci Seblat = The impact of coffee and cassiavera-s plantation in the foot of mountaneous area on the erosion intensity. Case study; subdistrict of Gunung Raya Kerinci Seblat, National Park Area - Asrizal Paiman, author (Program Pascasarjana Universitas Indonesia, 1996)