Metode-Penelitian-Kuantitatif-by-Agung-Widhi-Kurniawan-z-lib.org_Download Metode-Penelitian-Kuantitatif-Kualitatif-dan-RD-by-Prof.-Dr.-Sugiyono-z-lib.org_-1Download Metode-Penelitian-Sosial-by-Ismail-Suardi-Wekke-dkk-z-lib.org_-1Download Metode-Penelitian-Ekonomi-Syariah-Ismail-Suardi-Wekke-dkk.-z-lib.org_Download