Tjahjapranata, M. (2001). The impact of firm size, concentration and financial leverage on the effectiveness of r&d investment in generating firm's growth opportunities.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Tjahjapranata, Mira. The Impact of Firm Size, Concentration and Financial Leverage on the Effectiveness of R&d Investment in Generating Firm's Growth Opportunities. 2001.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Tjahjapranata, Mira. The Impact of Firm Size, Concentration and Financial Leverage on the Effectiveness of R&d Investment in Generating Firm's Growth Opportunities. 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.