AKINWALE, Olusegun Emmanuel. Employee voice: speaking up in organisation as a correlate of employee productivity in oil and gas industry - an empirical investigation from Nigeria. Serbian Journal of Management, [S. l.], v. 14, n. 1, p. 97–121, 2019. DOI: 10.5937/sjm14-15308. Dostupno na: https://asistent.ceon.rs/index.php/sjm/article/view/15308. Pristupljeno: 12 juli. 2026.