“ PELUANG INVESTASI USAHA BUDIDAYA KUTU LAK (Laccifer Lacca Kerr): STUDI KASUS DI KPH PROBOLINGGO PERUM PERHUTANI UNIT II JAWA TIMUR ”. PERENNIAL 4, no. 1 (January 1, 2008): 23–27. Accessed August 7, 2026. https://journal-598.unhas.ac.id/index.php/perennial/article/view/179.