Elfita, Rizki Amalia, Triyonowati ., and Heni Agustina. “Does Innovation Efficiency Matter to Firm Performance the Moderating Role of Environmental Uncertainty?”. The International Journal of Business & Management 9, no. 10 (October 31, 2021). Accessed May 18, 2024. http://www.internationaljournalcorner.com/index.php/theijbm/article/view/167091.