Hasibuan TFH. Harvest Volume or Extraction Efficiency? The Value Relevance of Fresh Fruit Bunch Yield and Oil Extraction Rate to the Stock Prices of Indonesian Palm Oil Plantation Companies Amid the Productivity Crisis. IJSAS [Internet]. 2026 Aug. 3 [cited 2026 Aug. 13];4(7):721-34. Available from: https://ijsasjournal.my.id/index.php/ijsas/article/view/24