Rizal, R. et al. 2023. Application of the LCM Method in Randomizing Colloid and Electrolyte Questions for Basic Chemistry Subjects at SMP N 45 Medan Based on Android . Indonesian Journal of Contemporary Multidisciplinary Research. 2, 1 (Feb. 2023), 45–60. DOI:https://doi.org/10.55927/modern.v2i1.2790.