In this paper, a mathematical model to describe the spread of an infectious disease on farm is developed. To analyze evolution infection, direct transmission from infected individuals and indirect bacteria accumulated in enclosure are considered. A threshold value population obtained assure extinction disease. When size exceeded, two control procedures apply at each time proposed. For them, max...

The purpose of this study was to determine the effect capital structure on firm value, either directly or indirectly. population in are all wholesale companies listed Indonesia Stock Exchange (IDX) 2009-2018. While sample is 22 which determined by using judgment sampling method. research design uses a causality design. Data analysis used descriptive statistics, and inferential statistics includ...