00455nam a22001337a 4500 210211b xxu||||| |||| 00| 0 eng d 9789996037450 510 Nyirenda, Spencer 2015 Achievers junior secondary mathematics: student's book1 Spencer Nyirenda Nairobi East African Educational Publishers LTD 2014 200p. Ilustrations ddc MC 510 NYI 33769 33769