Muzaffar, Chandra
A plea for empathy : the quest for Malaysian unity
Zubedy Ideahouse, 2010
Buku Teks SO
Somani, L.L.
Dictionary of weed science
Agrotech Publishing Academy, 1992
Buku Referensi
Zimdahl, Robert L.
Fundamentals of weed science
Academic Press , 1993
Buku Teks SO
Lu, Xun, 1881-1936
Ye cao = Weed = 野草
Renmin Wenxue Cjubanshe, 2001
Buku Teks
Part-timer's plea: where am i now?
Artikel Jurnal