The chromatic equivalence class of K1, n, n+2. - Boon Leong Ng; Fengming Dong (Discret. Math., 2015)

Independence equivalence classes of cycles. - Boon Leong Ng (Discret. Math., 2021)

Independence equivalence classes of paths. - Boon Leong Ng (Discret. Math., 2023)