WALIDIN, Warul. INFORMAL EDUCATION AS A PROJECTED IMPROVEMENT OF THE PROFESSIONAL SKILLS OF EMPLOYEES OF ORGANIZATIONS. Jurnal Ilmiah Peuradeun, [S. l.], v. 4, n. 3, p. 281–294, 2016. DOI: 10.26811/peuradeun.v4i3.103. Disponível em: https://www.journal.scadindependent.org/index.php/jipeuradeun/article/view/103. Acesso em: 18 apr. 2026.