Sasipreeyajan, Jiroj, Phornphisut Areeraksakul, and Somkid Khanda. 2016. “Protective Efficacy of Live LaSota Strain Newcastle Disease Virus Vaccine in Layer-type Chickens”. The Thai Journal of Veterinary Medicine 46 (2):195-200. https://he01.tci-thaijo.org/index.php/tjvm/article/view/63811.