This is the second time I bought this product, it is very durable, cheap and long life battery. I'm happy with its quality and the price. I would like to recommend this product to any of you who are searching for a rechargeable battery.
Although the price is a little bit high but the knowledge is priceless, this book illustrate the theoretical concept of the structural equation modelling by different chapter. The wording are very readable and the exercises after chapters help you to clarified the idea effortlessly. Strongly recommended this book.