Pair mean cordial labeling of udukkai, octopus, drum and fire cracker graphs. - R. Ponraj; S. Prabhu 001 (Discret. Math. Algorithms Appl., 2025)

Pair mean cordial labeling of windmill, planar grid and quasi-flower snark graphs. - R. Ponraj; S. Prabhu 001 (Discret. Math. Algorithms Appl., 2026)