1.
Somsri B, Pipattanajinda N. Algebraic Properties of Endomorphism Monoids on Barbell Graphs. J. Sci. Technol. CRRU [internet]. 2026 Jun. 29 [cited 2026 Sep. 12];5(1):33-42. available from: https://li01.tci-thaijo.org/index.php/jstcrru/article/view/270687