HENRY, J., MOHANRAJ, K., KANNAN, S., BARATHAN, S., & SIVAKUMAR, G. (2013). Effect of Butanol and Propylene Glycol in Amorphous MnO2 Nanoparticles. Walailak Journal of Science and Technology (WJST), 11(5), 437–443. Retrieved from https://wjst.wu.ac.th/index.php/wjst/article/view/590