Muangkarn P, Janthasopha J, Suanoom C. The Solutions of Diophantine Equation \frac{1^4}{v_1^4}+\frac{2^4}{v_2^4}+\frac{3^4}{v_3^4}+. +\frac{k^4}{v_k^4}=1. RMUTI Journal [internet]. 2024 Apr. 30 [cited 2026 Aug. 28];17(1):85-94. available from: https://ph01.tci-thaijo.org/index.php/rmutijo/article/view/256061