., Zainuri, Sebastiana Viphindrartin, and Silvi Asna. “Social Capital Strengthening Strategy for Maintaining Investment Sustainability in Lumajang Regency”. International Journal of Engineering & Technology 7, no. 3.21 (August 8, 2018): 250–255. Accessed April 30, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/17168.