21 1 50 Phil Bradfield Primary Author mixed material 9780582429468 China Pearson-Longman 2001 Additional Author - Additional Author mixed material 9780199204625 New York Oxford University Press 2008 Additional Author - Additional Author mixed material - - - Additional Author Hong, Betsy Teh Lay Additional Author mixed material 9789673003389 Malaysia Pearson-Longman 2008 Additional Author Koh, Caroline Additional Author mixed material 9789810603083 Singapura Pearson-Longman 2007 Additional Author Tay, Beverly Additional Author mixed material 978981060307 Singapura Pearson-Longman 2007 Additional Author Tay, Beverly Additional Author mixed material 9789812478207 Singapura Pearson-Longman 2007 Additional Author Miller Additional Author mixed material 9780133687187 Singapura Pearson-Longman - Additional Author Miller Additional Author mixed material 9780133690095 Singapura Pearson-Longman 2010 Bilingual Text Additional Author Hong, Betsy Teh Lay Additional Author mixed material 9789833982769 London Pearson-Longman 2008 Additional Author Raven, Peter H. Additional Author mixed material 0072437316 New York McGraw-Hill 2002 Paper 1,2,3 & 4 1989-2001 (New syllabus) Additional Author - Additional Author mixed material Singapura - - International Edition for IGCSE and O'Level Additional Author Jones, Mary Additional Author mixed material 0521891175 London Cambridge University Press 2005 NULL Additional Author mixed material 9780521703062 Inggris Cambridge University Press 2008 As level and A Level Additional Author Jones, Mary Additional Author mixed material 9780521703062 London Cambridge University Press 2007 Additional Author Booth, Graham Additional Author mixed material 1843155966 London Letts Educational 2005 Exam Secrets AS Additional Author Parker, John Additional Author mixed material 1843154064 London Letts Educational 2004 Visual Revision Guide Additional Author Dawson, Byron Additional Author mixed material 1843152614 London Letts Educational 2003 Additional Author Mackean, D.G. Additional Author mixed material 9780719580536 London Hodder Murray 2007 Additional Author - Additional Author mixed material 717285243 London Grolier International 1986 Additional Author Young, Richard S. Additional Author mixed material 197650116 New York Holt,Rinehart and Winston 1966