Table:
text: List of Singaporean films
1990s
1990s
Title Director Producer Production_Cost Singapore_Gross
Forever Fever Glen Goei Tiger Tiger Productions / ChinaRunn $1,500,000 $800,000
Money No Enough (钱不够用) Tay Teck Lock JSP Films $800,000 $5,800,000
Tiger`s Whip Victor Khoo River Films $1,000,000 $60,000
The Teenage Textbook Movie Philip Lim Monster Films $500,000 $680,000

Question: Who was the director of River Films produced film among 1990s Singaporean Movies?