CREATE TABLE "references" (
  "year" text,
  "men_s_singles" text,
  "women_s_singles" text,
  "men_s_doubles" text,
  "women_s_doubles" text,
  "mixed_doubles" text
);

Question: Who was the women's singles champion in 1984?
SQL: SELECT "women_s_singles" FROM "references" WHERE "year"='1984';

Question: Who were the men's doubles champions when the men's singles champion was muljadi?
SQL: SELECT "men_s_doubles" FROM "references" WHERE "men_s_singles"='muljadi';