Mannan, Nurhabibah Nabilah Ab, Sufia Aqilah Razali, Suhadir Shamsuddin, Mohamad Zaky Noh, and Zakiah Mohamed. “Effect Of Co3+ Substitution on Electro-Magnetic Properties of Pr¬0.75¬Na¬0.25¬mno¬3 ¬and Nd¬0.75¬Na¬0.25¬mno¬3¬ Manganites”. International Journal of Engineering & Technology 7, no. 4.30 (November 30, 2018): 389–392. Accessed April 28, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/22331.