Batas Pambansa - An Act to Strengthen the Constitutional Right of Workers to Self-Organization and Free Collective Bargaining and to Penalize Unfair Labor Practices, Further Amending for the Purpose Articles, 244, 247, 248, 249, 250, and 289 (Book V) of Presidential Decree Numbered Four Hundred Forty-Two, as Amended, Otherwise Known as the Labor Code of the Philippines