Mena, M.
(2021).
 The Dissolution Characteristics of Chrysocolla in NH₃ -(NH₄)₂ CO₃ Solutions.
<em>Philippine Engineering Journal, 5</em>(1).
Retrieved from <a href="https://www.journals.upd.edu.ph/index.php/pej/article/view/8311" target="_new">https://www.journals.upd.edu.ph/index.php/pej/article/view/8311</a>