W. Thanyaphirak, P. Yasaka, K. Boonin, N. SANGWARANATEE, and P. Limsuwan, “SYNTHESIS AND THE OPTICAL BEHAVIOUR OF ERBIUM-DOPED BORO-TELLURITE ZINC NIOBIUM BARIUM GLASS”, Suranaree J Sci Technol, vol. 33, no. 2, pp. 010418(1–7), Aug. 2026.