Pairings on Lambda Algebras. - William S. Hatcher; Marcel Tonga (Math. Log. Q., 1991)

A notion of functional completeness for first-order structure. - Etienne Romuald Alomo Temgoua; Marcel Tonga (Int. J. Math. Math. Sci., 2005)

Folding Theory Applied to Residuated Lattices. - Albert Kadji; Célestin Lélé; Jean B. Nganou; Marcel Tonga (Int. J. Math. Math. Sci., 2014)

Fuzzy n-Fold Filters of Pseudoresiduated Lattices. - Albert Kadji; Célestin Lélé; Marcel Tonga (Int. J. Math. Math. Sci., 2015)

Some new axiomatic extensions of residuated logics. - Albert Kadji; Marcel Tonga (J. Intell. Fuzzy Syst., 2016)

Fuzzy prime and maximal filters of residuated lattices. - Albert Kadji; Célestin Lélé; Marcel Tonga (Soft Comput., 2017)

A Residuated Lattice of L-Fuzzy Subalgebras of a Mono-Unary Algebra. - S. V. Tchoffo Foka; Marcel Tonga (New Math. Nat. Comput., 2019)

A note on the algebraicity of L-fuzzy subalgebras in universal algebra. - S. V. Tchoffo Foka; Marcel Tonga (Soft Comput., 2020)

Residuated lattice of L-fuzzy ideals of a ring. - S. V. Tchoffo Foka; Marcel Tonga (Soft Comput., 2020)

On the lattice and the algebra of fuzzy subsets of a universal algebra. - Armand Fotso Tatuene; Marcel Tonga (Fuzzy Sets Syst., 2021)

Rings and residuated lattices whose fuzzy ideals form a Boolean algebra. - S. V. Tchoffo Foka; Marcel Tonga (Soft Comput., 2022)