Examining the Relation of Productivity and Competitive Factors with Market Sales and R&D: A Study of Selected Agri-Biotech Firms of Punjab. Global Journal of Management and Business Research, [S. l.], v. 15, n. 44, p. 31–44, 2015. Disponível em: https://journalofbusiness.org/index.php/GJMBR/article/view/. Acesso em: 18 oct. 2026.