Pengaruh Kerapatan Papan Partikel Terhadap Perilaku Mekanika Balok Komposit Kayu Keruing-Papan Partikel Sengon = The Influence Particleboard Density on the Mechanics Behaviour of Composite Beam Made of Keruing Wood with - Perpustakaan UGM, i-lib ([Yogyakarta] : Universitas Gadjah Mada, 1999)