Text this: Effects of doping on magnetic and transport properties of La₀.₈₅₋ₓSmₓAg₀.₁₅MnO₃, La₀.₈₅₋ₓMₓAg₀.₂MnO₃ (M=Sm³⁺, Dy³⁺), (1₋ₓ)La₀.₈Ag₀.₂MnO₃/xBiFeO₃ And Pr₀.₆Ca₀.₄₋ₓBaₓMnO₃ Manganites / Norazila Ibrahim