Growth of Jabon Seedling (Anthocephalus cadamba) on Medium of Ex-Sand Mining with the Addition of Sub Soil and Charcoal of Coconut Shell PERTUMBUHAN SEMAI JABON (Anthocephalus cadamba) PADA MEDIA BEKAS TAMBANG PASIR DENGAN PENAMBAHAN SUB SOIL DAN ARANG.. - Wasis, Basuki; Institut Pertanian Bogor (Institut Pertanian Bogor (IPB), 2015)