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PERINGANAN ASAM GELUGUR SECARA HYBRID DENGAN KOLEKTOR SURYA DAN PORTOVOLTAIK PADA TEMPERATUR KONSTAN
(Majalah Ilmiah "VISI" Universitas HKBP Nommensen, 2019-02)
Sun is needed now because it is easily obtained and is available for free. Drying tecnology by untilizing solar heat on some agricultural commodities is needed so that quality can be improved. Asam Gelugur as a producer ...
Analisis Pengetahuan Masyarakat tentang Geopark Kaldera Toba dan Tumbuhan Endemik di Sumatera Utara
(Jurnal Visi Universitas HKBP Nommensen Medan, 2019-06-01)
Geopark is an earth park that has elements of geodiversity, biodiversity, and cultural diversity. This study aims to identify people’s understanding of Toba Caldera and endemic plants in North Sumatera. This activity consist ...