“Effect of Relative Substitution of Nanomaterials (Pb, Mg) on the Structural and Electrical Properties of the Superconductor Compound Bi₂₋ₓPbₓBa₂₋ᵧMgᵧCa₂Cu₃O₁₀₋δ” (2026) Journal of Pure and Applied Sciences (Science Forum), 26(4). doi:10.70882/d1n5y221.