TY - BOOK AU - Yap,Fook Loi TI - An Investigation into The Composition of The Quarry Face at Tunjang Quarry, Kedah : RAK (C11) PY - 1974/// KW - Kedah N2 - The geological survey was called in by the present quarry operators of the quarry, Tunjang Quarry Sdn. Bhd to carry out an investigation into the composition of the quarry face and advice upon the suitability of the quarry material for use as concrete aggregate ER -