Nadia, Nadia, and Eri Barlian. “The Impacts of the Gravel Mining Activity on the Society Interaction in Junjung Sirih Solok”. Science and Environmental Journal for Postgraduate 1, no. 2 (June 1, 2019): 54-60. Accessed April 24, 2024. http://senjop.ppj.unp.ac.id/index.php/senjop/article/view/31.