1.
Badrulfalah B, Susanti D, Joebaedi K, Kosasih R. Some Properties of Green’s Matrix of Nonlinear Boundary Value Problem of First Order Differential. Eksakta [Internet]. 2019Apr.28 [cited 2021Sep.28];20(1):41-7. Available from: https://eksakta.ppj.unp.ac.id/index.php/eksakta/article/view/173