Books can be purchased online or through Old City Publishing Inc., USA, Apac Publishing Services Pte Ltd, Singapore, steven@apacmedia. com.sg, Mr. Harutoshi Shiohara, Sci Resources Lab Inc, Japan, h_shiohara@sci-resources.co.jp. In India, books can be bought online from this portal or order through www.flipcart.com or www.a1books.com