6 1 20 Sugiyono Primary Author mixed material 9798433640 Bandung CV Alfabeta 2008 metode_penelitian_kuantitatif_kualitatif_dan_R%26D.jpg.jpg Sugiyono Primary Author mixed material 9798433106 Bandung CV Alfabeta 2005 Statistika_untuk_penelitian_cet._7.jpg.jpg Sugiyono Primary Author mixed material 9789798433108 Bandung CV Alfabeta 2016 statistika_untuk_penelitian_cet_27.jpg.jpg Sugiyono Primary Author mixed material 9789798433108 Bandung CV Alfabeta 2010 Statika_untuk_penelitian_sugiyono_cet_17.jpg.jpg Sugiyono Primary Author mixed material 9798433369 CV Alfabeta 2000 Metode_Penelitian_Bisnis.jpg.jpg Pendekatan Kuantitatif, Kualitatif, dan R&D Sugiyono Primary Author mixed material 9789798433245 Bandung CV Alfabeta 2008 Metode_Penelitian_Bisnis_Pendekatan_Kuantitatif%2C_Kualitatif%2C_dan_R%26D.jpg.jpg