http://repository.uhamka.ac.id/id/eprint/13754/ Tesis Rd. Heri Solehudin "Analisis Gaya Kepemimpinan Terhadap Semangat Kerja Karyawan" Heri Solehudin, Heri Solehudin http://repository.uhamka.ac.id/id/eprint/13754/1/THESIS%20HERI%20SOLEHUDIN.pdf Unduh!