Karakteristik Edible Film Pati Sagu Alami dan Pati Sagu Fosfat dengan Penambahan Gliserol (Characteristics of Edible Film from Native and Phosphate Sago Starches with the Addition of Glycerol) - Polnaya, Febby Jeanry (Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia, 2016)