https://solusiriset.com/rss/author/latisa-stefi Solusi Riset - latisa stefi ID Copyright solusiriset 2021 https://solusiriset.com/sapphire-kristalin-al2o3-material-revolusioner-untuk-pertahanan-modern https://solusiriset.com/sapphire-kristalin-al2o3-material-revolusioner-untuk-pertahanan-modern Fri, 30 May 2025 10:04:17 +0700 latisa stefi Shappire, material, militer