Annisa T, Azkiya A, Fauzi R, Nandiyanto A, Hofifah S. Cost Analysis and Economic Evaluation for Manufacturing Hydroxyapatite Nanoparticles from Eggshell Waste. INJURATECH [Internet]. 25Jun.2021 [cited 6May2024];1(1):211-26. Available from: https://ojs.unikom.ac.id/index.php/injuratech/article/view/5669