Purba R. The Effect of Communication and Motivation on Employee Performance at PT. Perkebunan Nusantara II Pagar Merbau. enrichment [Internet]. 2018Nov.1 [cited 2026Jun.3];9(1, Novembe):4-. Available from: https://www.enrichment.iocspublisher.org/index.php/enrichment/article/view/7