Syafrida Hafni Sahir; Mulkan Fadhli; Acai Sudirman; Abdurrozzaq Hasibuan; Dina Chamidah; Salmiah; Salmiah; Sherly; Sherly; Erika Revida; Janner Simarmata; Sukarman Purba. Keterampilan Manajerial Efektif. Yayasan Kita Menulis; 2020. oai:ais:library-item:28670