1. J. Ahsan, Seminear-rings characterized by their $\mathcal{S}$-ideals, I, Proc. Japan Acad. Ser. A Math. Sci., 71(5) (1995), 101-103.
2. J. Ahsan, Seminear-rings characterized by their $\mathcal{S}$-ideals, II, Proc. Japan Acad. Ser. A Math. Sci., 71(6) (1995), 111-113.
3. R. Balakrishnan and R. Perumal, Left duo seminear-rings, Scientia Magna, 8(3) (2012), 115-120.
4. R. Balakrishnan and S. Suryanarayanan, $P(r,m)$ near-rings, Bull. Malays. Math. Sci. Soc., 23(2) (2000), 117-130.
5. R. Balakrishnan and S. Suryanarayanan, On $P_k$ and $P_k'$ near-rings, Bull. Malays. Math. Sci. Soc., 23(1) (2000), 9-24.