Since I do not have enough means of income, can my husband's parents sponsor for him?

Generally, a U.S. citizen may sponsor a spouse to "consular process" in order to enter the U.S. and become a Permanent Resident, and this is true even if the U.S. citizen spouse does not have sufficient documentable income to meet the Affidavit of Support requirements. If the U.S. citizen spouse does not have sufficient documentable income, then it may be necessary to have a joint sponsor in the application process who also files an Affidavit of Support. Generally any U.S. citizen or Permanent Resident who has sufficient documentable income and who is willing to assume the responsibilities contemplated by the Of Affidavit of Support will be eligible to serve as a joint sponsor. Of course, there are many other details that determine eligibility. It would be wise for you and your to consult with an immigration attorney who, after learning all of the relevant information, could advise about eligibilities, options, and strategies to attain your goals, and who then could offer legal representation in the often complex application process.