Kitabu cha tatu cha hesabu, Tanzania: Kiongozi cha Mwalimu 

 - Dar es Salaam  Tanzania Publishing House Ltd.  1969 
 - viii,247p.  22cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>LC Class. No.: </label>EAF QA11.T33 No3