Waihiga, Gichohi. Chemchemi za Kiswahili : kidato cha Pili / Gichohi Waihiga, K. W. Wamitila. - Kampala; Nairobi; Dar-es-Salaam, Longhorn Publishers, c2003. - vi, 274 p. : ill. ; 25 cm. ISBN: 9966495215 978966495211 Dewey Class. No.: 496 / WAI