SUGIARTO & SUGIARTO. (1996). Penghijauan Pantai Sugiarto, Willy Ekariyanto. Penebar Swadaya.
Chicago Style (17th ed.) CitationSUGIARTO and SUGIARTO. Penghijauan Pantai Sugiarto, Willy Ekariyanto. Penebar Swadaya, 1996.
MLA引文SUGIARTO and SUGIARTO. Penghijauan Pantai Sugiarto, Willy Ekariyanto. Penebar Swadaya, 1996.
警告:这些引文格式不一定是100%准确.