Mohammad El Joubbeh, Salman Ghazal: Existence of paths with  blocks in -chromatic digraph. Discrete Applied Mathematics 342 (2024) 381-384.

Abbas Al-Hakim, Mouhamad El Joubbeh, Subdivision of oriented cycles in digraphs with Hamiltonian directed path,  In submission.

Mouhamad El Joubbeh, Minimum size Separators And Menger’s Theorem, Graphs and Combinatorics, 39, 61 (2023).

Mouhamad El Joubbeh, Subdivision of oriented cycles in Hamiltonian digraphs with small chromatic number, Discrete Math., 346 (2023) 113209.

Mouhamad El Joubbeh, On three blocks paths P(k,l,r), Discrete Appl. Math., 322 (2022) 237–239.

Maidoun Mortada, Amine El Sahili, Mouhamad El Joubbeh, About Paths with Three Blocks,  Australas. J. Comb., Vol. 80 (1) (2021), pages 99-105.