List of Articles Double-Bounded Dichotomous Choices (DBDC) Open Access Article Abstract Page Full-Text 1 - Simultaneous Usage of Double-Bounded and One and One-Half Bounded Dichotomous Choices in the Valuation of Sisangan Forest Park kamal Ataie Solout AhmadAlie Keikha 10.22034/jest.2020.29652.3820