6 1 20 Qualitative, Quantitative, and Mixed Methods Approaches John W. Creswell Primary Author mixed material 9781412965576 USA Sage 2009 BTS_20171213_0009.jpg.jpg Choosing Among Five Approaches John W. Creswell Primary Author mixed material 9781412916066 London Sage Publication 2007 300.72_cre_inq_five_app_among.jpg.jpg Mixed Methods Research John W. Creswell Primary Author Vicki L. Plano Clark Additional Author mixed material 1412927927 USA Sage Publication 2007 BTS_20171213_0032.jpg.jpg Planning, Conducting, and Evaluating Quantitative and Qualitative Research John W. Creswell Primary Author mixed material 979978013207308 New Jersey Pearson Education 2008 di_080.jpg.jpg John W. Creswell Primary Author mixed material 0761901434 London Sage Publication 1997 300.72_cre_five_john_cress.jpg.jpg Pendekatan Kualitatif, Kuantitatif, dan Mixed John W. Creswell Primary Author mixed material 9786028764841 Yogyakarta Pustaka Pelajar 2010 IMG_20170731_2682.jpg.jpg