Hartani, K. P., and A. Handayati. “Stability of Lyophilized Homemade Control Serum After Reconstitution on SGOT and SGPT Levels Stored in Freezer at Temperature (-2° to -4°C) and -20°C for 8 Weeks”. Indonesian Journal of Medical Laboratory Science and Technology, vol. 5, no. 1, Apr. 2023, pp. 53-67, doi:10.33086/ijmlst.v5i1.3278.