АВС аналіз, XYZ аналіз

https://pricer24.com/uk/blog/shho-take-abs-analiz-yak-i-dlya-chogo-jogo-provoditi-v-kategorijnomu-menedzhmenti/

https://abcsupplychain.com/abc-xyz-analysis/

https://inteli-chain.com/the-9-box-model-abc-xyz-classification/