Handbook of mixed method in social & behavioral research

 Tashakkori, Abbas; Teddlie, Charles; Daryatno;

Yogyakarta : Pustaka Pelajar , 2010

Mixed methodology : mengombinasikan pendekatan kualitatif dan kuantitatif

 Teddlie, Charles; Tashakkori, Abbas; Budi Puspa Priadi;

Yogyakarta : Pustaka Pelajar , 2010