Reduction of Lignin from Coffee Husk using Organosolve Method - Edahwati, Luluk; UPN Veteran Jawa Timur Jl. Raya Rungkut Madya Gunung Anyar, Surabaya (Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta, 2014)