Rafsanjani, M. H., S. Wibisono, and C. Irwanadi. “Association of Serum Magnesium Levels With Matrix Metalloproteinase-9 (MMP-9) Urine in Patients With Diabetic Kidney Disease Stage 1 and 2”. Biomolecular and Health Science Journal, vol. 2, no. 2, Oct. 2019, pp. 78-81, doi:10.20473/bhsj.v2i2.15045.