8 1 10 Christopher A Langley Additional Author mixed material 9794131903 ILMU_KONSTRUKSI_BANGUNAN_1.jpg.jpg John F Marriott Additional Author Keith A Wilson Additional Author Christopher A Langley Additional Author Dawn Belcher Additional Author mixed material 9780853699125 LONDON Pharmaceutical Press 2010 53.PNG.PNG Christopher A Langley Additional Author mixed material 2002 ilmu_konstruksi_bangunan_2.jpg.jpg Christopher A Langley Additional Author mixed material 9794132187 1991 mekanika_teknik_1.jpg.jpg Christopher A Langley Additional Author mixed material 1990 mekanika_teknik_2.jpg.jpg Christopher A Langley Additional Author mixed material 1984 ilmu_konstruksi_bangunan_1.jpg.jpg Christopher A Langley Additional Author mixed material 9794132187 mekanika_teknik_1.jpg.jpg Christopher A Langley Additional Author mixed material 9794133450 IMG_20191206_182734.jpg.jpg