Siraprapa Thaitaworn และ Oravan Sanguanruang. (2007) Synthesis and properties of perovskite Pr2Ni1-xMxO4, Pr2Ni1-xMxGa0.05O4, Pr2Ni1-x-0.05MxGa0.05O4(M=Cu, Co, Mg, Zn, In and x=0.1-0.3). Chulalongkorn University:ม.ป.ท.Siraprapa Thaitaworn และ Oravan Sanguanruang. 2007. Synthesis and properties of perovskite Pr2Ni1-xMxO4, Pr2Ni1-xMxGa0.05O4, Pr2Ni1-x-0.05MxGa0.05O4(M=Cu, Co, Mg, Zn, In and x=0.1-0.3). ม.ป.ท.:Chulalongkorn University;Siraprapa Thaitaworn และ Oravan Sanguanruang. Synthesis and properties of perovskite Pr2Ni1-xMxO4, Pr2Ni1-xMxGa0.05O4, Pr2Ni1-x-0.05MxGa0.05O4(M=Cu, Co, Mg, Zn, In and x=0.1-0.3). ม.ป.ท.:Chulalongkorn University, 2007. Print.