8 1 30 Robby Lou Primary Author mixed material 9799880629 Jakarta 2005 cover_english_grammar_and_how_to_use_it.jpg for elementary students with key Elaine Walker, Steve Elsworth Additional Author mixed material 0582417066 Pearson Education Limited 2000 Betty Schrampfer Azar Additional Author mixed material 0133683176 Tina B.Carver 1941 for intermediate students Elaine Walker, Steve Elsworth Additional Author mixed material 0582417163 England Pearson Education Limited 1986 third edition with answer key Betty Schrampfer Azar Additional Author mixed material 0130976059 Pearson Education 1998 for pre-intermediate students with key Elaine Walker, Steve Elsworth Additional Author mixed material 0582417104 England Pearson Education Limited 2004 for intermediate students self study edition with key L.G.Alexander Additional Author mixed material England Addison Wesley Longman Limited 1990 Betty Schrampfer Azar, Stacy Hagen Additional Author mixed material 0130136336 Pearson Education 2003