Text ( visual ) : unmediated Colloquial Swahili : the complete course for beginners / Donovan McGrath and Lutz Marten. -- 2nd ed.. -- : pbk.. -- London : Routledge , 2012. -- viii, 330 p ; 22 cm. -- (Colloquial series). -- First edition published by Routledge 2003 ; Includes index. -- ISBN 9781138950177 ; (BB27256899) ; https://ci.nii.ac.jp/ncid/BB27256899 Author Heading(s): Marten, Lutz ; McGrath, Donovan. -- Classification(s): DC23 : 496.39283421. -- Subject Heading(s): LCSH : Swahili language -- Spoken Swahili ; LCSH : Swahili language -- Textbooks for foreign speakers -- English ; LCSH : Swahili language -- Self-instruction