1. A. K. Upadhyay, A. K. Tiwari, D. Maity: Semi-equivelar Maps, Contrib. Algebra Geom. 55(1), 2012, 229-242. Link

2. A. K. Tiwari, A. K. Upadhyay: Semi-equivelar maps on the surface of Euler characteristic -1, Note Mat. 37(2), 2017, 91-102. Link

3. A. K. Tiwari, A. K. Upadhyay: Semi-equivelar maps on the torus and Klein bottle, Math. Slovaca 67(2), 2017, 1-14. Link

4. A. K. Tiwari, A. Tripathi, Y. Singh, P. Gupta: Doubly semi-equivelar maps on the torus and Klein bottle, J. Math. 2020. Link

5. A. K. Tiwari, A. K. Tripathi: Almost semi-equivelar maps on torus and Klein bottle. Int. J. Math. Comb. 4(2021), 34-40. Link

6. Y. Singh, A. K. Tiwari: Doubly semi-equivelar maps on plane and torus, AKCE Int. J. Graphs Comb., 19(3), 2022, 296-310. Link

7. A. K. Tiwari, Y. Singh, A. Tripathi: 2-semi equivelar maps on torus & Klein bottle, Commun. Comb. Optim., 10(4), 2025, 877-904. Link

8. Y. Singh, A. K. Tiwari: Enumeration of doubly semi-equivelar maps on Klein bottle, Indian J. Pure Appl. Math. 56(2), 2025, 571-594. Link

9. Y. Singh, A. K. Tiwari, M. S. Pandey, F. Ali: Power graphs over gyrogroups, Asian Eur. J. Math. Link

10. A. Singh, Y. Singh, A. K. Tiwari, S. Pirzada: On the Aα matrix over finite metacyclic groups, Proc. Natl. Acad. Sci. India Sect. A Phys. Sci. Link

11. F. H. Lutz, T. Sulanke, A. K. Tiwari, A. K. Upadhyay: Equivelar & d-covered triangulations of surfaces I (Accepted, Graphs Comb.) Link